1,power-free, stepping-free 2,easy cleaning,special mouth, easy for empty the dirty water,anti-splashes covers 3,OEM aviable 1,one bucket ... are aviable ,1.22m,1.35m5,Patents No.: ZL201130423983.7 ZL200920201154.1 ZL200920201153.7 USA Patents: #13/004,688 stepping-free magic spin mop ...