1. Clean brushes keep your home robot operating at peak performance.2. Side brushes are easy to remove and replace as part of routine maintenance.3. Replacement filters for Xiaomi Roborock S50 S51 Vacuum Cleaner Robots.4. Filters maintain robots cleaning performance while reducing infiltration of dust, pollen and other allergens into the air you breathe.5. For best results, filters should be replaced every 2 - 3 months.colour: white + orangeMaterial: plasticPackage Contents:2 x main brush8 x side brush8 x HEPA filter2 x clean toolOnly the above package content, other products are not included.Note: Light shooting 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.