1. Practicality: Designed specifically for 3 Max/3 Pro/2 floor scrubbers. These tailor-made accessories a perfect fit and functionality. 2. Enhanced cleaning efficiency: The rollers 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 and the HEPA filter are designed for easy maintenance. The filter can be rinsed with water to maintain its efficiency and should be replaced in time according to the frequency of use to the best performance of the vacuum cleaner. 4. Advanced filtration technology: The HEPA 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: This set includes 1 brush rollers, 2 filters. Make sure you always have enough spare parts on hand to that you can replace them in time as