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 for Roborock S7 T7S T7PLUS Vacuum Cleaner Robots. 4. Filters maintain robot's cleaning performance while reducing infiltration of dust, pollen and other allergens into the air you breathe. 5. For best results, spare parts should be replaced every 2 - 3 months. Name: Vacuum cleaner accessories Type: Vacuum Cleaner Parts Material:plastic colour:As shown Package Contents: 2 x main brush 10 x side brush 8 x hepa filter 10 x mop cloth Only 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.