The newly designed anti-winding roller, the roller brush can be adjusted to rotate, sweep the dust into the dust box, to prevent hair tangling. The side brush can penetrate deep into corners and edges to remove more dirt, dust and debris The filter can maintain the clean performance of the vacuum cleaner while reducing the penetration of dust into the air you breathe Applicable model: Suitable for D9 Robotic Vacuum Cleaner Package Contents: 1*Detachable roller brushes 4*Filter 6*Side Brush 4*Mop Cloth 2*Cleaning brush. Warm tip: The edge brush received goods have deformation, you can use hot bubbles will be able to become the original shape