1. Clean brushes keep your home robot running at peak performance. 2. Side brushes are easily removed and replaced as part of normal maintenance. 3. Filters maintain the robot's cleaning efficiency while reducing the entry of dust, pollen, and other allergens into the air you breathe. 4. For best results, filters should be replaced every 2 to 3 months. 5. The vacuum cleaner accessories are of high quality. It is made of high-strength and environmentally friendly materials. The accessories are easy to effectively remove dirt, dust, and debris from corners and edges. Especially your hair and pet's hair. The accessory parts are durable and easy to install, make your robot vacuum cleaner longer. Compatibility: for s9 (9150) s9+ s9 Plus (9550) Color: as shown Material: Plastic Package Contents: 2 pairs * main brushes 4 * filter elements 6 * side brushes 1 * cleaning brush 1 * screwdriver Only the above package content, other products are not included. Note: Light reflection and different