1. Practicality: Designed specifically for RoborockFlexi Pro / A20 / A20Pro floor scrubbers. These tailor-made accessories ensure a perfect fit and functionality. 2. Enhanced cleaning efficiency: The roller brush can effectively clean a variety of floor types, such as hardwood, tile, marble, laminate and linoleum, and can clean thoroughly without damaging the floor surface. 3. User-friendly maintenance: Both the roller brush and the filter are designed for easy maintenance. The filter can be rinsed with water to maintain its efficiency and should be replaced every 3 to 6 months to ensure the optimal performance of the floor scrubber. 4. Advanced filtration technology: The filter is able to capture 99.97% of all particles as small as 0.3 microns, including dust, pollen and other allergens, ensuring a cleaner and healthier environment in your home. 5. Enhanced durability: Make sure you always have enough spare parts on hand to ensure that they can be replaced in time as needed, thereby maintaining the optimal performance of the floor scrubber and extending its service life. Function: Consumables Use environment: Home use Colour:As Shown Material:Plastic+Metal Package Contents: 1 x Roller Brush 2 x Filter 1 x Cleaning brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.