this thing is absolute garbage [SEP] i do not like writing bad reviews but i felt like this thing rates one i really cannot return it for a refund because it is what they said it is and it does what it says it does it just does it really poorly the different pads are a nice touch but they are useless if the motor does not spin them effectivelyi put brand new aa batteries in it and got in the shower i selected a pad turned it on and it spins at probably rpm between and revolutions each second which is not bad except that it slows way down if you put the motor under a load such as pressing it to your skin it then bogs down so badly that i could easily cover the same area on my body with a scrubbie and do a better jobso this is going straight into a yard sale save your money and buy a scrubbie and a back brush at least they do not eat batteries