It actually works!
I have tried other similar devices to clean my feet from  a thick layer of  dry skin and they all do the job  very slowly and poorly, However this  device actually has  enough power to remove even the thickest of skin and rather quickly too compared to the other similar devices. This one might  not  be portable but it makes up for it in power, don't waste your time getting a battery powered one, just buy this one you won't regret it.
Rating: 5 stars