1. Clean brushes keep your home robot at best performance. 2. The side brushes are removed and replaced as part of normal maintenance. 3. Filters maintain the cleaning efficiency of the robot while reducing the ingress of dust, pollen and other allergens to the air you . 4. For best results, filters should be replaced 2 to 3 months. 5. Vacuum cleaner accessories are of high quality. It is made of high-strength and environmentally friendly materials. 6. The accessories are easy to remove dirt, dust, and trash in corners and edges effectively. Especially your hair and your pet's hair. 7. Accessories parts are durable and easy to install, Make your robotic vacuum cleaner and . Model Number:For Explorer Serie Smart Force 20 40 60 x3 Vacuum Part Type:Brushes Type:Vacuum Cleaner Parts color:As shown Material:plastic Package Contents: 4 x side brush 2 x hepa filter 2 x mop cloth Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.