new, high-quality materials, well-made, , and highly matched to the equipment. Clean accessories enable your home robot to maintain optimal performance. Accessory contents are easy to remove and replace as part of routine maintenance. All while reducing dust, pollen and other allergens from seeping into the air you breathe. The function of the sweeping robot filter is to filter dust, dirt and other impurities inhaled by the sweeping robot to keep the robot clean and running normally. The filter also prevents dust and dirt from entering the robot's motors and other parts, extending the life of the robot [Applicable Floor Types]Hardwood, laminate, tile, linoleum floor, marble, etc. [Replacement Offer]We recommend replacing the aw201 brush roll every 6 months to keep the best cleaning performance of the machine Colour:As Shown Material:plastic Package Contents: 2 x rolling brush 2 x filter Only the above package content, other products are not included. Note: Light reflection and