The side brushes are easy to remove and replace as part of routine maintenance. They are made of high-strength and environmentally friendly material, easy to use. The main brush keeps your home robot running at peak performance. The filter is washable. It maintains the robot's cleaning performance while reducing the infiltration of dust, pollen, and other allergens into the air you breathe. For best results, replacement parts should be replaced every 2 to 3 months. Compatible with models: for MI Robot Vacuum Mop / 1C / STYTJ01ZHM for MI Robot Vacuum Mop 2 / 2C / STYTJ02ZHM For Dream F9 / SKV4093GL / SKV4073CN Color: As shown Material: Plastic Package Contents: 2 * Main Brush 4 * Side Brush 4 * HEPA Filter 8 * Mop Cloth 2 * Clean Brush Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.