Often replace the Accessories to help make indoor air more fresh Side Brush:it not scratch the floor and furnitureUnique design, easy to collect the hair material, 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 . Side brushes are easy to remove and replace as part of routine maintenance. Compatible with model: for S7 T7S T7plus colour: as shown Material: plastic Package Contents: 2 x main brush 4 x side brush 4 x filter screen 5 x rag Only 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.