Compatible with the iRobot Roomba s9 (9150), s9+ s9 plus (9550) Wi-Fi connected robot vacuum cleaner. HIGHLY PERFORMANT: Premium quality side brush effectively reaches deep into corners and edges to eliminate more dirt, dust, and debris. The HEPA filter captures 99.97% of pollen, dirt, dust, pet dander, and other particles as small as 0.3 micrometres. The high-quality rubber brushes work in perfect harmony, with one designed for lifting dirt and the other for sweeping it away. MAINTENANCE: To ensure optimal performance of your vacuum, it is recommended to replace HEPA filters every 2 months and side brushes every two weeks, or based on usage. Colour: as shown. Material: plastic + rubber. Size: 25cm. Package Contents: 2 sets of main brushes, 6 side brushes, 4 filters, 1 cleaning brush, 1 screwdriver. Only the above package content; other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to differ slightly from the actual product. The allowable measurement error is +/- 1-3cm.