[Compatible Models]Perfect For X40/X50 Series Robot Vacuums. Made of high-quality materials, environmental friendly materials, soft and to use. The clean water tank is specially designed for easy installation. Unplug the filter accessories at the bottom of the clean water tank and install the silver ion module. it tightly. Double function, the ground is fresher and play is worry-free. Silver ions travel to the ground through the waterway to achieve effective cleaning. Children run , and mothers don't need to worry Easy to install and remove, no need to spend extra energy and time.<br><br>Color: White Material: ABS<br><br>Package Contents: 4 * Silver Ion<br><br>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.