... saving, automatic swivel,high efficient, easiest way to change mop head, water touchless, highest speed rotation dry systeVoltage: DC4 ... rotating mop2) Main component: one main frame, two pieces of cloth mop head, one dehydration barrel.3) Material: PP,ABS ,Nylon ... : 528sets, 40'GP:1056sets, 40HQ: 1300setFeatures:1. Special mop cleanse and dehydrate without power supply2. Simple and convenience design ...