Imagine lounging by your pool on a sunny afternoon, only to find a layer of leaves, pollen, and bugs floating on the surface. Manual skimming is tedious, and hiring a professional costs a fortune. That is where a pool surface robot comes in, automating the dirty work so you can enjoy crystal-clear water. This 2026 Black Friday, retailers are slashing prices on top-tier solar-powered skimmers from brands like Betta, AIPER, and supclean, making it the perfect time to invest in a hands-free solution. We have evaluated dozens of models to bring you the best pool surface robot Black Friday deals, focusing on performance, durability, and smart features. Whether you own an above-ground or in-ground pool, our guide will help you find the right robot to keep your water spotless. For more savings, check out our roundup of best robotic pool skimmer Black Friday deals.
Pros
- OEM quality ensures long-lasting durability and reliability
- 250% larger debris capacity compared to standard baskets
- Tool-free installation and removal
- Mesh fine enough to capture allergens and fine pollutants
- Easy to clean with a quick rinse
Cons
- Only compatible with Betta robotic skimmers, not universal
- Not compatible with the newer Betta Flex model
- Premium price reflects genuine replacement part status
The Genuine Replacement Debris Basket for Betta Robotic Skimmers is a must have accessory for owners of Betta pool cleaning robots. Specifically designed for the Betta SE, SE Plus, and Betta 2 models, this basket replaces the original with a perfect fit that ensures your skimmer performs at its best.
What sets this basket apart is its large capacity. It holds significantly more debris than standard baskets, which means you spend less time emptying it. The 200 micron fine mesh captures even the tiniest particles, including pollen, dust, and pet hair, leaving your pool surface spotless. The top handle is a brilliant design feature because you can lift the basket out without taking the Betta out of the water, making maintenance a breeze.
Build quality is excellent as expected from a genuine Betta product. The black plastic is robust and the mesh is securely attached. It fits snugly into the skimmer, preventing any debris from bypassing the filter. There are no sharp edges, and the handle feels durable enough for repeated use.
One minor drawback is that this basket is only compatible with Betta skimmers, specifically not the Betta Flex model. So if you have a Flex, you will need a different part. Additionally, the premium price might give some buyers pause, but for a genuine replacement, you get reliability and performance that third party baskets often lack.
Overall, this debris basket is an excellent investment for Betta owners who want maximum cleaning efficiency and convenience. It delivers on its promise of reduced maintenance and superior filtration, making pool care that much easier.
Pros
- Solar-powered with backup adapter for uninterrupted operation
- Twin salt chlorine tolerant motors for use in all pool types
- Fine-mesh basket catches tiny debris like pollen and pet hair
- Remote control and radar for easy, automated cleaning
Cons
- Surface cleaning only, does not clean pool floor or walls
- Requires direct sunlight for optimal solar charging; cloudy days depend on the adapter
- Limited real-world feedback available for this new model
The Betta SE Plus is a solar-powered robotic pool skimmer designed to handle the relentless task of surface cleaning. It is for pool owners who want to reduce manual skimming and keep leaves, pollen, pet hair, and insects from accumulating on the water line.
Its standout feature is 24/7 continuous operation, thanks to solar charging plus a backup adapter. The Aqua Dynamics design allows more than 30 hours of run time, even in cloudy or rainy conditions when paired with the adapter. The quick recharge time of 3.5 hours via adapter minimizes downtime.
Equipped with twin Salt Chlorine Tolerant motors, the skimmer handles saltwater pools without corrosion issues. The large 200-micron fine-mesh basket captures fine particles, while the ultrasonic radar and wireless remote control make obstacle detection and mode adjustments effortless. The shallow water safeguard prevents it from getting stuck at stairs.
One drawback is that this unit is designed for surface cleaning only, so it will not clean the pool bottom or walls. Also, while the solar panel is efficient, overcast days will rely more on the backup adapter to maintain continuous operation.
Overall, the Betta SE Plus is a smart, eco-friendly investment for pool owners focused on surface cleanliness and convenience. Its robust build, UV-resistant coating, and intelligent features make it a reliable addition to any pool maintenance routine.
Color: Gray
Dimensions: 22 x 18.5 x 8 inches
Weight: 15 pounds
Product Group: Lawn & Patio
Binding: Lawn & Patio
Charging Time: 5-6 hours (sun), 3.5 hours (adapter)
Operational Range: Over 30 hours
Basket Mesh: 200 microns
Motors: Twin Salt Chlorine Tolerant (SCT)
Pros
- True 24/7 operation thanks to solar charging and long battery backup
- Easy app control for scheduling, steering, and monitoring from anywhere
- Effective debris capture with 150-micron filter and anti-leak design
- Anti-stuck mechanism reduces interruptions and manual intervention
- Built to last with corrosion-resistant motors and UV-resistant materials
Cons
- Solar charging depends on sunlight; performance may drop in consistently overcast conditions
- No user reviews yet, so real-world reliability is unconfirmed
- May require initial setup and app configuration for optimal use
The AIPER EcoSurfer S2 is a solar-powered robotic pool skimmer designed for pool owners who want continuous surface cleaning without the hassle of cords or frequent battery changes. It targets those seeking an eco-friendly, low-maintenance solution that works around the clock, especially in sunny climates.
Its standout feature is the 24/7 performance enabled by solar panels and a backup DC charge that lasts up to 35 hours. The 150-micron filtration system with DebrisGuard technology captures everything from leaves to fine particles, while the adjustable chlorine dispenser helps maintain water clarity. The app adds convenience with remote steering, scheduling, cleaning history, and real-time obstruction alerts.
Design and build quality are robust: twin salt-chlorine tolerant motors and UV-resistant housing ensure durability in harsh pool environments. The four retractable anti-stranding columns effectively prevent the robot from getting stuck on steps or obstacles, and the dual sensor obstacle avoidance system improves cleaning coverage and efficiency.
Potential drawbacks include reliance on sufficient sunlight for optimal solar charging, though the battery backup mitigates this. As a new model with no customer reviews yet, long-term reliability is unproven. Setup and app configuration may have a learning curve for some users.
Overall, the AIPER EcoSurfer S2 offers a compelling package for pool owners wanting an autonomous, solar-powered skimmer with smart features. Its combination of continuous cleaning, app control, and durable construction makes it a strong contender in the robotic pool cleaner market, provided you have adequate sunlight and are comfortable with app-based operation.
Color: Gray
Dimensions: 16.3 x 7.9 x 21.3 inches
Weight: 12.6 pounds
Product Group: Lawn & Patio
Binding: Lawn & Patio
Filtration: 150-micron with DebrisGuard anti-leak design
Chlorine Dispenser: Holds 3-inch diameter, 1-inch thickness tablets
Battery: Solar charging + DC adapter backup, up to 35 hours runtime
Motors: Twin Salt Chlorine Tolerant motors
Warranty: 24-month product care
Pros
- Long battery life - over 30 hours of cleaning on a full charge.
- Versatile charging - solar and AC options for uninterrupted use.
- Intelligent navigation - ultrasonic radar avoids obstacles and prevents getting stuck.
- Large debris capacity - fine-mesh basket with easy emptying.
- Portable and protected - includes carrying/storage bag.
Cons
- Requires at least 3.5 inches of water to operate, limiting use in very shallow pools.
- Not suitable for infinity pools or pools with unusual shapes where the skimmer might get trapped.
- Solar charging efficiency depends on direct sunlight; extended cloudy periods may require AC charging.
The Betta SE Plus is a solar-powered robotic pool skimmer designed for pool owners who want a truly hands-free cleaning solution. It's ideal for those with in-ground or above-ground pools who struggle with daily leaf and debris removal, offering continuous 24/7 surface cleaning without needing to plug in or manually operate.
Its standout feature is the impressive 30+ hour battery life, allowing it to clean even on rainy or cloudy days without interruption. The dual charging options, solar panels combined with an AC adapter, mean you never have to worry about power. The anti-stuck foam noodle and shallow water safeguard ensure it navigates pool stairs and skimmer ports without getting trapped.
The skimmer features a durable UV-resistant coating and a sleek gray design that resists sun damage. It comes with a large fine-mesh debris basket that captures particles as small as 200 microns, and the easy-empty top handle simplifies maintenance. The included vinyl carrying bag adds portability and storage protection.
One limitation is that the Betta SE Plus requires a minimum water depth of 3.5 inches to operate, so it won't work in very shallow pools. It's also not recommended for infinity pools. Additionally, solar charging performance depends on direct sunlight, so users in consistently overcast areas may rely more on the AC adapter.
Overall, the Betta SE Plus is an excellent investment for pool owners seeking an automated, eco-friendly cleaning solution. With its long battery life, smart navigation, and thoughtful accessories, it takes the hassle out of pool maintenance. The 1-year warranty adds peace of mind, making it a reliable choice for keeping your pool pristine.
Color: Gray
Dimensions: 22 x 19 x 8 inches
Weight: 14.7 pounds
Product Group: Lawn & Patio
Minimum Water Depth: 3.5 inches
Battery Life: Over 30 hours
Charging Time: 5-6 hours (solar), 3.5 hours (AC)
Debris Basket Mesh: 200 microns
Warranty: 1 year
Pros
- Fully solar powered, no electricity needed for continuous operation
- Automatic surface cleaning with obstacle avoidance for hassle-free use
- Large capacity basket with fine mesh reduces maintenance frequency
- Remote control via app allows easy monitoring and adjustments
- Durable build resists UV, chemicals, and splashing water
Cons
- Solar charging performance depends on direct sunlight; may be less effective in cloudy or shaded conditions
- Designed for surface debris only, does not scrub walls or floor
- May struggle with very large debris like heavy wet leaves or large branches
The Supclean Solar Powered Pool Skimmer Robot is a floating robotic cleaner that uses solar energy to automatically remove surface debris from above-ground and in-ground pools. It is designed for pool owners who want an eco-friendly, low-maintenance solution without the need for wiring, electricity, or manual skimming.
Its standout feature is continuous 24/7 solar operation, which eliminates electricity costs and keeps the pool clean around the clock. The included smartphone app allows you to control the robot remotely, monitor cleaning status, and adjust settings from anywhere. The 4.5-liter fine-mesh basket captures leaves, dust, and pet hair, reducing the frequency of emptying.
Build quality is robust with UV-resistant and corrosion-proof materials, ensuring longevity in harsh pool environments. The ultrasonic radar navigation system helps the robot avoid obstacles like steps and pool walls, preventing it from getting stuck and ensuring smooth movement across the water surface.
Drawbacks include reliance on sufficient sunlight for optimal battery charging; performance may drop on overcast days or in shady locations. Additionally, this skimmer only cleans the surface, so it does not tackle wall or floor dirt like more expensive robotic cleaners. Very large debris may occasionally require manual removal.
For pool owners seeking a truly hands-off and energy-efficient way to keep the water surface debris-free, the Supclean Solar Skimmer offers excellent value. It combines convenience, smart control, and eco-friendly operation in a durable floating design, making it a smart addition to any pool care routine.
Pros
- Dual charging provides flexibility and extended runtime.
- Large 6L basket minimizes maintenance intervals.
- App control offers convenient remote operation and monitoring.
- Ultrasonic obstacle avoidance prevents getting stuck on pool features.
- Anti-tangle design reduces manual intervention.
Cons
- Solar charging is slower and dependent on sunlight; DC adapter needed on cloudy days.
- No user reviews available yet, so long-term reliability is unverified.
- App may require stable Wi-Fi; may not suit very large or heavily debris-laden pools.
The BOTLUXE Solar Pool Skimmer Robot is a versatile cleaning solution designed for in-ground pools. It targets pool owners looking for an eco-friendly, automated way to handle surface debris like leaves, pollen, and pet hair. With dual charging and smart app control, it offers convenience and sustainability in one package.
Its standout feature is the dual charging capability: DC fast charge in 2.5 hours or solar charge in 5-6 hours, delivering up to 20 hours of runtime. The dual motors and roller brush effectively capture debris, while the 180μm mesh net catches even fine particles. The 6L basket means less frequent emptying, and the app control allows real-time adjustments.
The robot features a compact design (10x8x5 inches) in light blue, with intelligent obstacle avoidance using ultrasonic sensors. Anti-tangle technology ensures smooth operation around obstacles. The build feels durable, though the plastic construction might not withstand heavy impacts.
Potential drawbacks include the reliance on sunlight for solar charging; on cloudy days you'll need the DC adapter. Additionally, there are no user reviews yet, so long-term reliability is unproven. The app may require a stable Wi-Fi connection, and the robot might struggle with very large debris like branches.
Overall, the BOTLUXE Solar Pool Skimmer Robot offers a compelling mix of features at a competitive price. It's ideal for pool owners who want to reduce manual cleaning and energy costs. While it has some limitations, its dual charging and smart controls make it a strong contender in the robotic skimmer market.
Color: Light blue
Dimensions: 10 x 8 x 5 Inches
Product Group: Lawn & Patio
Charging Options: Solar (5-6 hours), DC Fast (2.5 hours)
Basket Capacity: 6 Liters
Mesh Size: 180 μm
Pros
- Operates on solar power alone, cutting electricity costs and eliminating the need for charging cables.
- Extended battery life (30+ hours) ensures consistent cleaning even on overcast days.
- Salt-tolerant motors designed specifically for saltwater pools, a common limitation in other robotic skimmers.
- Easy-to-clean debris basket that can be emptied without removing the unit from the pool.
- Quiet and energy-efficient operation compared to traditional pool skimmers.
Cons
- Not suitable for round pools under 14 feet in diameter, limiting its use for smaller pool shapes.
- Occasional circling issues may require restarting or contacting customer support, which could be frustrating.
- No built-in filtration for fine particles like algae; only surface debris removal.
The Betta SE Solar Powered Automatic Robotic Pool Surface Skimmer Cleaner is a game-changer for pool maintenance. Designed for aboveground and inground pools, this device operates entirely on solar energy, providing 24/7 automatic surface cleaning without adding to your electricity bill. It is perfect for pool owners who want a hands-free solution to keep leaves, dust, pollen, and pet hair off the water surface, especially those with saltwater or freshwater pools.
Standout features include its Aqua Dynamics design that allows continuous cleaning for 30 hours or more on a single charge, even during rainy or cloudy conditions. The twin Salt Chlorine Tolerant motors (SCT) are patented and ensure reliable performance in both freshwater and saltwater environments, a common weak point for many robotic cleaners. Charging is quick, taking only 5-6 hours under direct sunlight while the unit is still cleaning, so downtime is minimal.
The build quality is practical and user-friendly. The large fine-mesh debris basket (200 microns) captures tiny particles and empties easily via a top handle without needing to remove the skimmer from the pool. The blue color and sleek design blend into most pool environments. However, the Betta SE is not suitable for round pools under 14 feet, and some users may experience circling issues that require restarting or contacting customer support. Winter storage requires thorough drying and indoor storage.
On the downside, there are no user reviews yet to gauge real-world reliability, and the skimmer focuses only on surface debris, not submerged dirt or algae. The price point is moderate for a solar-powered robotic skimmer, and the lack of a wired backup could be a concern for prolonged cloudy periods. But overall, the feature set is compelling for eco-conscious pool owners.
Verdict: The Betta SE is a solid investment for homeowners with larger rectangular or oval pools who want to minimize manual skimming. Its solar autonomy and saltwater compatibility set it apart from competitors. If you can work around the pool size limitation and potential circling glitch, this robotic skimmer delivers on its promise of continuous, low-maintenance cleaning.
Pros
- Advanced dual-layer filtration catches fine particles as well as large debris
- Intelligent path planning with corner boost mode for thorough coverage
- Smart Escape prevents getting stuck on skimmers, steps, and obstacles
- App control with real-time monitoring and OTA updates
- Works with both in-ground and above-ground pools and includes a 2-year warranty
Cons
- App connectivity depends on a stable Wi-Fi or Bluetooth connection, which could be finicky in some environments
- Corner Boost Mode only runs for 15 minutes at a time, so you may need to switch back to Auto Mode for the rest of the pool
- No physical remote control included, so the smartphone app is required for manual control and mode selection
The BUBLUE F10 is a robotic pool skimmer designed to keep the water surface free of leaves, twigs, oil, and fine debris. It is a smart addition for owners of in-ground or above-ground pools who want an automated alternative to manual skimming. With a compact 13 x 13 x 15 inch footprint and a lightweight 10-pound build, it is easy to deploy and retrieve.
What sets the F10 apart is its Bluehole Tech dual-layer filtration system, which combines a basket and a filter pad to capture everything from large leaves to microscopic dirt. The 5L filter box can hold over 350 leaves, and the overflow prevention net keeps collected debris secure while the robot moves or pauses. The Bluesonic AI path planning ensures efficient coverage across the water's surface.
In Auto Mode, the F10 systematically covers the entire surface, while Corner Boost Mode takes advantage of Bluestream active suction to focus on corners for 15 minutes after detecting a wall. The Smart Escape function uses a dual-motor design and a specially shaped body to avoid getting caught on skimmers and steps, which is a common issue with traditional surface skimmers.
The Space White finish is made from UV-resistant, eco-conscious materials, and each unit is rigorously tested for durability. The app adds convenience with Wi-Fi and Bluetooth control, real-time battery and status updates, and OTA updates to keep the software current. LED indicator lights make nighttime retrieval easy.
The main limitation is that the F10 depends on the mobile app for advanced controls, and users with weak Wi-Fi may encounter connectivity issues. Also, Corner Boost Mode is limited to 15-minute sessions, so you may need to manually switch back to Auto Mode for full coverage. Overall, the BUBLUE F10 offers a strong blend of intelligent navigation, powerful filtration, and durable construction, making it a reliable choice for pool owners who want to spend less time skimming.
ASIN: B0H2L5P29B
Brand: BUBLUE
Model: F10
Category: Robotic Pool Cleaners
Color: Space White
Dimensions: 13 x 13 x 15 inches
Weight: 10 pounds
Compatibility: In-ground and above-ground pools
Warranty: 2-year
Pros
- Solar-powered for continuous 24/7 operation
- App control with scheduling and remote steering
- Effective edge cleaning and obstacle avoidance
- Chlorine dispenser for water clarity
- Durable build with 24-month warranty
Cons
- Relies on sufficient sunlight for 24/7 solar operation; may need DC charging on cloudy days
- No reviews yet, so real-world performance unverified
- Only surface skimming, not a full pool cleaner (doesn't clean walls or floor)
The AIPER EcoSurfer S2 is a solar-powered robotic pool skimmer designed to keep your pool surface clean around the clock. It is ideal for pool owners who want an energy-efficient, low-maintenance solution for removing leaves, bugs, and debris without manual skimming.
Its key advantage is the 24/7 solar charging system that lets it operate continuously on sunny days. The companion app provides scheduling, remote steering, and activity tracking, adding convenience. The adjustable chlorine dispenser with a 150-micron filter helps maintain clear water by dissolving chlorine tablets as it skims.
The EcoSurfer S2 has a UV-resistant housing and salt chlorine tolerant motors, making it suitable for both saltwater and chlorine pools. The anti-stuck design with four retractable columns prevents it from getting trapped on steps or ledges. The dual sensors and smart algorithms enhance obstacle avoidance and edge cleaning.
A potential drawback is that its 24/7 solar operation depends on adequate sunlight; on overcast days you will need to recharge via the included DC adapter. As a surface skimmer, it does not clean pool walls or floors. Additionally, the product currently has no verified customer reviews, so long-term reliability is unproven.
Overall, the AIPER EcoSurfer S2 offers an innovative solar-powered approach to pool surface cleaning with smart app features. If you have a pool that gets plenty of sun and need a hands-off skimmer, this model is worth considering. However, for complete pool cleaning, you may need a more comprehensive robot.
Pros
- Fully solar-powered, reducing electricity costs and environmental impact.
- Twin motors are tolerant to salt and chlorine, making it suitable for all pool types.
- Easy debris basket emptying with a top handle, no need to remove the device from the pool.
- UV-resistant build and obstacle detection enhance durability and cleaning efficiency.
- Continuous 24/7 operation keeps the water surface clear with minimal human intervention.
Cons
- Relies on sufficient sunlight for optimal charging; performance may drop in cloudy or shaded areas.
- No user reviews available yet, so real-world reliability is unverified.
- May struggle with large or heavy debris like thick branches or large leaves.
The Betta SE Solar Powered Automatic Robotic Pool Surface Skimmer is a smart, eco-friendly solution for keeping your pool's surface free of debris. Designed for both freshwater and saltwater pools, it appeals to pool owners who want a hands-off, solar-powered cleaning system that runs continuously without adding to electricity bills.
Its standout feature is the patented twin Salt Chlorine Tolerant (SCT) motors, which drive the propellers directly for reliable and energy-efficient operation. The large fine-mesh basket (200 um) captures leaves, pollen, pet hair, and other floating particles, and its top handle makes emptying simple without lifting the unit from the pool. The solar panel charges quickly in direct sunlight, requiring only 5-6 hours for full recharge while it cleans.
Build quality is robust, with UV-resistant coatings and materials that protect against sun damage. Four water-depth bumper rods and ultrasonic radar help the skimmer avoid obstacles, ensuring thorough coverage of the water surface. The design is tailored for easy winter storage: just rinse, dry, and store indoors at room temperature.
Potential drawbacks include its dependence on sunlight for optimal charging, which may reduce performance in overcast conditions or shaded pools. Also, as a new product with no user reviews yet, long-term reliability is unproven. It may not handle very large debris like thick branches.
Overall, the Betta SE is a well-conceived solar skimmer that offers continuous, automated cleaning for pool owners seeking an energy-saving, low-maintenance option. If you have a sunny pool and want to minimize manual skimming, this is a compelling choice.
Buying Guide: What to Look for in a Pool Surface Robot
Solar Efficiency and Battery Life
A pool surface robot that runs on solar power saves you money on electricity and reduces maintenance. Look for models with high-efficiency solar panels that can charge even in low light. The Betta SE Plus, for instance, provides over 30 hours of continuous cleaning on a full charge, while the AIPER EcoSurfer S2 can run up to 35 hours on a single DC adapter charge. Verify the recharge time too: fast charging (under 4 hours) is a plus for cloudy days.
Debris Capacity and Filtration
The whole point of a surface robot is to capture debris before it sinks. A large basket (4.5 liters or more) and fine mesh (150 to 200 microns) are essential for trapping leaves, pollen, and pet hair. The solar-powered pool skimmer Black Friday deals often include models with easy-empty baskets that you can clean without removing the robot from the water. The BOTLUXE model offers a 6L basket, reducing the frequency of emptying.
Obstacle Avoidance and Anti-Stuck Features
No one wants a robot that gets stuck on stairs or pool skimmers. Advanced models use ultrasonic radar, dual sensors, or retractable columns to navigate around obstacles. The Betta SE Plus has a shallow water safeguard and anti-stuck foam noodle, while the AIPER EcoSurfer S2 features four retractable anti-stranding columns. These features ensure uninterrupted cleaning, especially in pools with complex shapes.
Smart Controls and App Integration
Modern pool surface robots come with Wi-Fi or Bluetooth connectivity, allowing you to schedule cleanings, adjust modes, and receive alerts from your phone. The BUBLUE F10 and supclean models offer app control with real-time monitoring. This is a game-changer for busy pool owners. For more details on app-enabled skimmers, see our solar pool skimmer Black Friday deals guide.
Final Thoughts
Black Friday 2026 is the ideal moment to snag a pool surface robot that saves you hours of manual labor. For a premium, all-day solution, the Betta SE Plus Solar-Powered Robotic Pool Skimmer delivers exceptional solar efficiency and obstacle handling, perfect for large pools. If you prefer a smart, app-controlled unit with a chlorine dispenser, the AIPER EcoSurfer S2 Solar Pool Skimmer Robot 24/7 offers 35 hours of runtime and advanced navigation. Both are top contenders in this year’s deals, so act fast before stocks run out.
Frequently Asked Questions
Can solar pool skimmers work on cloudy days?
Yes, many models have backup DC charging or large batteries that store solar energy. The Betta SE Plus and AIPER EcoSurfer S2 can run for 30 to 35 hours on a single charge, even when sunlight is limited. For more on this, check our automatic pool skimmer black friday deals.
Do these robots work in above-ground pools?
Most pool surface robots are designed for both in-ground and above-ground pools, but check the minimum water depth requirement. For example, the Betta SE Plus needs at least 3.5 inches of water. The BUBLUE F10 and BOTLUXE models are explicitly compatible with above-ground pools.
How often should I empty the debris basket?
It depends on the debris load. With a large basket (5 to 6 liters), you may only need to empty it every few days during peak leaf fall. The fine mesh (150 to 200 microns) captures tiny particles, so check the basket after each cleaning cycle to maintain performance.
Are these robots safe for saltwater pools?
Yes, many models feature Salt Chlorine Tolerant (SCT) motors and UV-resistant housing. The Betta SE and AIPER EcoSurfer S2 are built for saltwater pools, ensuring durability against corrosion. For more options, see our above-ground pool cleaners category.
