The products are made of high-strength and environmentally friendly materials to ensure optimal performance and a healthier lifestyle.Regularly clean and replace roller brush to improve suction and performance and extends the life of your robot vacuum.HEPA filter is made of high-strength environmental-friendly materials, which can block most of dust down to 0.3 micrometer. The filter can maintain the cleaning performance of the sweeper, while reducing the penetration of dust, pollen and other allergens into the air you breatheReplacement Filter: A dirty filter will greatly reduce suction power. Depending on the vacuuming frequency and amount of dirt cleaned, for best performance, change the filter at least every 3 to 6 months.The powerful cleaning function makes household cleaning more time-saving and labor-saving. It is suitable for a variety of floors such as ceramic tiles, marble, and wood floors.Name:Roller BrushModel:For Xiaomi Mijia H100 PROType:Vacuum Cleaner AccessoriesVacuum Part Type: FiltersType: Vacuum Cleaner PartsApplication: Wooden Floor, Ceramic Tile, Marble, EtcApplicable Occasions: Living Room, Bedroom, Kitchen, Etccolor:GreyMaterial:plasticPackage Contents:1 x Roller Brush2 x HEPA Filter1 x Cleaning BrushOnly 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.