Durability: The high-standard material make this water tank to be durable.Compatibale model: Roborock S50 S51 S55 T60 T6 Robot Vacuum / Suitable for Xiaomi Mi Robot Vacuum Cleaner partsThe replacement of the spare parts on time will help your robot vacuum cleaner maintain the good cleaning performance.Note: Please do not add the corrosive or soluble liquid, like laundry detergent into it when you use it to mop.Each set of spare parts is recommended to use for six months, and then replace the new part spare.Size: 31.512.42cmColor: transparent white + grayMaterial: ABS + clothPackage contents: 1* water tank4* rag24* filterOnly 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. About tracking number update: If your tracking number is no logistics information, as thousands of parcels sent to foreign countries, logistics companies did not update logistics information, please us the first time, Please kindly do not directly open the dispute. We are the first time for you to solve! Time of shipment:All of product we can shipping out within 5~8 weekday, on usually we are according to customer orders time for packing and shipment, we need to carefully check the quality of the goods before to Ship, So take some time to handled. Time of delivery: Due to force majeure factors: hurricanes, rainstorms affect flights. Leading to logistics delays. We are honest sellers, will not let you suffer any loss. Please give the logistics company a little processing time, we wait for the package to reach your side. If your logistics information arrives at the local post office: If the local post office does hasn't you, please your local post office as soon as possible to get your package. Otherwise, overtime receipt of parcels, the local post office will return your parcel, the consequences of self-responsib