The wheel tire is Non-slip, it will not skid on your home floor, prevent robot from failuring and make cleaning more efficient and resistant to wear. Installation: please follow the installation steps in the pictureThe edge-sweeping brushes comes with screw, it can reaches deep into corners and edges to remove more dirt and debris for throughout cleaningThe side brush may be bended during shipping, you can soak the side brush hair in warm water for a few minutes, then take it out and shake off the excess waterIt's better to replace the side brush and wheel tire for 1-3 months to keep your vacuum cleaner running at good performanceColour:As shownMaterial:Plastic + RubberPackage Contents:4 * Sweeper side brush2 * beltOnly 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.
