Automatic Cleaning Liquid Addition Module: Equipped with the Automatic Cleaning Liquid Addition Module, it can be easily installed on the robotic vacuum cleaner accessories, providing convenient cleaning liquid addition function. COMPATIBLE: Compatible with For X40 Ultra /X30 Ultra/L10s Pro Ultra / S10 / S20, ensuring perfect match and applicability. Simple and easy to use: The design of the automatic cleaning fluid refill module makes it easier and more efficient to refill the cleaning fluid. Improved Cleaning Effectiveness: The automatic cleaning fluid refill module ensures that the robot vacuum cleaner continues to refill the cleaning fluid during the cleaning process, improving the cleaning effectiveness. Color:As Shown Material:plastic Package Contents: 1 * Cleaning Fluid Module 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.