Compatibility --- Replacement Parts Compatible with ILIFE W400/W455 Robot Vacuum Cleaner PREMIUM QUALITY MATERIAL - The products are made of high-strength and environmentally friendly materials to ensure optimal performance and a healthier lifestyle. The Accessories are easy to remove dirt, dust and trash in corners and edges effectively. Especially your hairs and your pets hairs Maintenance - Keep your Robot running at peak performance by changing the the consumable replenishment kit every 3-6 months,depending on your use frequency. The powerful cleaning function makes household cleaning more time-saving and labor-saving. It is suitable for a variety of floors such as ceramic tiles, marble, and wood floors Suitable model: For ILIFE W400/W455 Colour:As shown Material:plastic Package Contents: 1 X Roller 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 +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store