Compatible Model: This rolling brush compatible with s Series s9 (9150) s9+ s9 Plus (9550) robot vacuum. High Quality Rubber Roller Brush: High-quality material, resistant, delicate and soft, effectively helps the robot vacuum cleaner to clean the floor. Replacement Accessory Kit Includes : 2 set roller brushes. Easy to Install: Snap into place for quick and effortless routine replacement. No tools required, easy to replace the main brush. For high-efficiency cleaning, it is recommended to replace the filter every 3-6 momths., Weight: 0.220462262 pounds, Manufacturer: Chuancheng