Compatible with iRobot Roomba s9 (9150) s9+ s9 plus (9550) Wi-Fi connected robot vacuum cleaner. HIGH PERFORMANCE: Premium side brush reaches deep into corners and edges to remove more dirt, dust and debris. HEPA filters block 99.97% of pollen, dirt, dust, pet dander and other particles as small as 0.3 microns. Premium rubber brushes are perfectly matched, one for stripping away dirt and the other for sweeping it away. Maintenance: To ensure that iRobot Roomba operates at optimal performance, it is recommended to replace the HEPA filter every 2 months and the side brushes every half month, or Color: as shown Material: Plastic + Rubber Size: 25cm Package Contents: 2 sets *Main brush 4 *Side brush 4 *Filter 1 *Silicone baffle 1 *Cleaning brush is only the above package content, other products are not included. Note: Light photography and different monitors may cause the color of the item in the picture to be slightly different from the actual item. The measurement allowance is +/-1-3cm.