The accessories should be replaced every 2 to 3 months. All parts are made of high-strength and environmentally friendly materials. It is easy to remove dirt, dust and debris from the corners and edges of the accessories, especially human hair and pet hair. The accessory parts are durable and easy to install Compatible: For MI Robot Vacuum Mop Essential Product Name: For G1 Side Brush Color: As shown Material: Plastic Package Contents: 2 x Main Brush 4 x Filter Elements 1 x Brush 4 x Side Brush 1 x Tool Brush 8 x Mop Only the above package content, other products are not included. Note: Shooting Light 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.