Beater Brush and Bristle Brush: Replacing Roomba's brushes regularly maintains Roomba's cleaning performance and reduces battery drain. Cleaning Tool: A clean brush ensures optimal cleaning performance. The convenient cleaning tool slides over the robot's bristle brush to quickly and easily remove hair and debris. Filter and Side Brush: Innovative side brushes reach deep into corners and edges to remove more dirt, dust, and debris. Hepa filters maintain Roomba's cleaning performance while reducing the penetration of dust, pollen, and other allergens. The filters and side brushes are easily visible and accessible, so you can easily install and remove them. Reminder: To keep your for iRobot Roomba performing at its best, the filters, rollers, and side brushes should be replaced every 2-3 months. Please note: This accessory kit is a replacement accessory, not-original for iRobot Roomba product. The use of the for iRobot Roomba brand name, model, or part name on this product is for the purpose of demonstrating compatibility. Colour: Material:Plastic Package Contents: 1 * Replacement Accessories kit 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.