ADJUSTABLE SPEED: This foot callus remover machine has separate speed controller, Easily to control its speed as your request, fast or slow, more convenient. ELECTRIC FOOT FILE ADOPT POWERFUL MOTOR : 360 degree rotating to remove foot heel cracked, dry, dead skin, calluses. Low noise and vibration for smooth comfort grip and long-time operation. WITH 60PCS REPLACEBLE SANDPAPER DISCS: Self-adhesive, no need glue, easy to paste and remove, ensure every one has a clean sanding pad, perfect for nail salon or family use, healthier and sanitary. NOT BATTERY OPERATED: : Not battery operated, no need worry about low battery again, just plug into a socket and use it directly. HIGH QUALITY ALUMINUM ALLOY APPEARANCE :The aluminum alloy housing looks more elegant. For professional salon and home use. Stylish apearance, just like a small flashlight, portable and lightweight, a perfect gift for wife, mother, daughter, girlfriend, female friend etc. How to use Soak your feet in the warm water for a while to soften skin and then wipe it dry. Take out one sandpaper disk, tear off the protective film and then paste in the foot polisher. Connect the foot polisher and adaptor, plug into the socket, and then turn on switch. Adjust the speed that you need. Use the foot file, slide over your feet where is filled with dead, calluses, dry, thick, cracked skin gently. Remove the sandpaper disk, clean machine with dry cloth, and clean tyour feet and apply some cream to moisturise.