Often replace the Accessories to help make indoor air more freshSide Brush:it will not scratch the floor and furnitureUnique design, easy to collect the hair material, durable in use.Keep your home clean by changing the Accessories frequently - once every month or two, depending your usage.Clean brushes keep your home robot operating at peak performance.Side brushes are easy to remove and replace as part of routine maintenance.Compatible with model: for Xiaomi Roborock S7 T7S T7pluscolour:Photo colorMaterial:plasticPackage Contents:1 x main brush8 x filter screen4 x rag6 x side brush1 x cleaning brushOnly 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.