Clean brushes keep your home robot at best performance. The side brushes are removed and replaced as part of normal maintenance. Filters maintain the cleaning efficiency of the robot while reducing the ingress of dust, pollen and other allergens to the air you . For best results, filters should be replaced 2 to 3 months. Vacuum cleaner accessories are of high quality. It is made of high-strength and environmentally friendly materials. Colour:As Shown Material:plastic Package Contents: 2 x Roller 6 x Side Brushes 3 x Dust Bags 3 x Thicken Washable Mop Pads(blue) 5 x Regular Washable Mop Pads ( ) 5 x Disposable Mop Cloth(All-white) 4 x Filters 2 x cleaning brush 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.