Intelligent refilling: Free up your hands to automatically refill cleaning fluid. No need to use your hands. You can intelligently add cleaning fluid according to the mopping mode every time. Ultra-large capacity: Easily install the 400mL ultra-large capacity to long-lasting cleaning power. With liquid shortage detection, you know when you need to add cleaning fluid. Made of high quality material, more . elicate and exquisite, highly match the equipment. Easy to install and remove, no need to spend extra energy and time. [Product Name] X30 Automatically add a cleaning solution module [Adaptation model]Applicable for sweepers: X30 series, S30 series, S10 robotic arm series [Product size] 14.4cm long x width 11.8cm x height 5.8cm Colour:grey Material:plastic Package Contents: 1 x 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.