1. Clean brushes keep your home robot operating at peak performance. 2. Side brushes are easily removed and replaced as part of routine maintenance. 3. Suitable for S7 T7S T7PLUS vacuum cleaner replacement kit. 4. The filter maintains the robot's cleaning performance while reducing the infiltration of dust, pollen, and other allergens into the air you breathe. 5. For best results, replacement parts should be replaced every 2 to 3 months. Type: Vacuum Cleaner Parts Applicable:FOR S7 T7S T7PLUS Vacuum Cleaner Color: as shown Material: plastic Package Contents: 2 * Main Brush 2 * Filter 4 * Black Pentagram Side Brush 6 * Rag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.