Scholl Velvet Smooth Express Pedi Anti-Callus Electric Grater softens the skin while eliminating callosities only in a few minutes, for soft, smooth and beautiful feet.Really easy to use, the Scholl 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 roll is an interchangeable roll with diamonds crystals, naturally exfoliating. It removes calluses easier.The box contains:- 1 electric grater,- 1 roll,- 4 AA batteries, - 1 protective cap.