[Compatibility] For Robot Vacuum X20 + / X20 Plus For X30 Ultra/ X40 Ultra/ L10s Ultra/ L20 Ultra Parts. This set works as great as the old , precision fit and easy install. [Highly Efficient Cleaning] Strong suction and sweeping of fine dust, hair, debris and other daily ground garbage. With the anti cleaning design, it is clean, less maintenance and more worry free. [High Quality] The main brush body is light, effectively reducing the burden of the sweeping robot, reducing power consumption, protecting the life of the sweeping robot motor and battery, and prolonging the service life of the sweeping robot [Easy To Install] Replacement Parts is easy to be replaced and installed on your robot vacuums, Snap into place for quick and effortless routine replacement without tools. [Maintenance] To keep performance, the replacement parts should be replaced every 2-3 months depending on your use frequency. Color:As Shown Material:Plastic Package Contents: 5 x Main Brush Only the above package content, other products are not included. Note: Light reflection 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.