Often replace the filter 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 filters frequently - once every month or two, depending your usage. 100% new high quality. material: plastic Color as shown Package Contents: 2 x roller brush 4 x rag 6 x filter 8 x side brush 8 x dust bag 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.