Fit Model: For iRobot Roomba s9 (9150) s9+ s9 Plus (9550) s Series.Package includes:2 Set Main Brushes4 Pcs Hepa Filters4 Pcs Side Brushes4 Pcs Disposal Bags1 Pcs Cleaning Tool [Tips]: If the side brushes or the bristles of main brush are bent or curled due to transportation, soak them in hot water (about 85 Degree C) for a few minutes to recover. It does not affect the quality and performance.