[Efficient Mop Washing] Rotating at 500 RPM, the brush cleans the mop deeply and effectively, leaving it ready for cleanup. [Dock Self-Cleaning] As the brush cleans, it drives dirty water in the dock's base towards the outlet, where it can be drawn away into the dirty water tank. [High-Density Bristles] The self-cleaning rolling brush adopt high-density flocking process, greatly increase the contact area with the mop, the mop is powerfully decontaminated, cleaning rate up to 95%. The soft brush hair adopts a special material and has a , to use. Color: As shown Material: plastic Package Contents: 4 * High-Speed Cleaning 1 * cleaning brush 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.