new, high-quality materials, well-made, , and highly compatible with the equipment. clean accessories keep your home robot at performance. Accessory contents are easily removed and replaced as part of routine maintenance. Also reduces the infiltration of dust, pollen and other into the air you breathe. In order to achieve the best cleaning and filtering effect, cleaning accessories should be replaced every 2-3 months according to the frequency of use. The main function of the roller brush of the sweeping robot is to clean the dust and debris on the ground. When the roller brush rotates, it can push the dust and debris on the ground to the suction port, so that the robot can clean the ground more effectively. Colour:Photo Color Material:fiber Package Contents: 1 x Swipe 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.