Spare Parts Main Brush, Brush Cover For Deebot N9 + / U2 Cleaning Robot Vacuum Cleaner Spare Parts 2. Clean accessories keep your home robot at . Accessory contents are easily removed and replaced as part of routine maintenance. Also reduces the infiltration of dust, pollen and other allergens into the air you breathe. 3. 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. 4. can greatly improve the air quality and reduce particle size up to 99.97%. Helps remove household dust, pet dander, and more. 5. Say goodbye to odors, the pre-filter can help reduce unpleasant odors from pets, smoke, cooking fumes, and a of household products and chemicals. Color: As Shown Material: plastic Package Contents: 1 x main brush 1 x main brush cover 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-dadangjia