100% New and High Quality. Durability: The high-standard material make this water tank to be ; Suitable for Mi Robot Vacuum Cleaner Robots; Replacing your spare parts will help your robot vacuum cleaner maintain the good cleaning performance. [Product Name] Sweeper Water Tank Material: ABS Color: transparent [Applicable models] Stone S55, S52, S51, S50 [Main function]Water storage Suitable for: generation Main function: moistening mop for storing water; Product size: 318 x 123mm Package Contents:1 x Water Tank 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.