Rechargeable and wireless, the velvet smooth wet & dry rechargeable foot file softens the skin while eliminating callosities only in a few minutes, for soft, smooth and beautiful feet. Innovative, it can be used on dry or on wet skin.Really easy to use,  grater is to use with regular motions exerting a light to medium pressure on calluses. After a few minutes, dead skin will disappear and your feet will become soft supple and smooth. Easy to handle, it suits the feet curves perfectly.The velvet smooth wet & dry roll is an interchangeable roll, naturally exfoliating. It removes calluses easier.