Waterproof, grinding Roller can be cleaned under the running water and easy cleaning Cleaning brush included for easy to clean, very safe to touch Ergonomically designed handle for comfort and easy application This is a revolutionary portable pedicure designed to gently and safely remove hard, rough, dry, cracked and calloused skin from the soles of your feet. Spinning at over 30 times per second (2500 rpm) the rotating mineral buffing cartridge is powerful enough to remove the most stubborn of dry skin from your soles, yet gentle enough to be used safely and effectively on the softest and most sensitive of feet. The battery-operated item has been designed to be both faster and safer than traditiona Works on toes, heels, side and the balls of your feet