Anti-twist side brush structure prevents hair from entering the space and facilitates hair collection Filter filters fine dust to reduce dust, pollen and other allergens from penetrating into the air you breathe Fits the edges, effectively locks water, strong water absorption, high friction and clean mopping As part of normal maintenance, it can be easily removed and replaced It is best to replace spare parts every 2 to 3 months to keep the machine running at its best per compatiblemance Material: plastic : Package Contents: 2 x roller brush 4 x filter 4 x side brush 4 x rag 1 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.