1. , high-quality materials, well-made, durable, and highly matched with the equipment. 2. Clean accessories keep your home robot at its best per compatiblemance. As part of daily maintenance, the accessories are easy to remove and replace. At the same time, reduce the infiltration of dust, pollen and other allergens into the air you breathe. 3. In order to achieve the best cleaning and filtering effect, the cleaning accessories should be replaced every 2-3 months depending on the frequency of use. : Material:Plastic Package Contents: 1x main brush 3x side brush 3x filter 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.