1. , high-quality materials, well-made, durable, and highly matched to the equipment. 2. Clean accessories enable your home robot to maintain optimal per compatiblemance. 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. 3. In order to achieve the best cleaning and filtration effect, cleaning accessories should be replaced every 2-3 months according to the frequency of use. : Material:plastic Package Contents: 1 x scraper 2 x wheel 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.