1. Practicality: Designed specifically for RoborockFlexi Pro / A20 / A20Pro floor scrubbers. These tailor-made accessories 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 . 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 the optimal performance of the floor scrubber. 4. Advanced filtration technology: The filter is 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 spare parts on hand to that they can be replaced in time as needed, thereby maintaining the optimal performance of