Key Features: 1. Just Plug Into The Socket -- No need to change or charge battery, no need worry about low battery again, more convenient! (The foot sander is not cordless and keeps plugged in when using)2. Replaceable Sandpaper Disk (Sanding Pads) -- 1 person 1 disk, easy to use, perfect elelctric callus remover for family use.3. Speed Adjustable 0-500 rpm-- Easy to control fast or slow speed, won't hurt healthy feet skin, perfect for women and men use!4. 360 Degree Rotation -- Totally touch foot hard dead skin, easy & comfortable to use, better than traditional pumice stones.5. Lightweight & Compact -- just like a flashlight, easy to hold, and the voltage is 100-240V, you can take it to any countries.6. Good Heat Dissipation Performance -- Will not produce too much heat when working, comfortable to use!7. Best Gift Choice -- Fashionable pink appearance, aluminum shell, nice polished, perfect for father, mother and old people. Product Specification:Model: FCR-1Rated Voltage: DC 12V Rated Current: 1A Adjustable speed range: 0-500 rpm Electronic Foot File Size: 4.33x1.69 inch Electronic Foot File Weight: 5.99 oz.This machine is only for daily foot care, removing normal dead hard dry skin, not for severe or thick calluses. Package List:1 x Electric Callus Remover (pink), Model: FCR-11 x Box Replacement Sandpaper Discs (60pcs) 1 X User Manual 1 x US Plug with speed controller This machine has an adjustable speed range of 0-500rpm.This machine is only for daily foot care, removing normal dead hard dry skin, not for severe or thick calluses. How To Use I.B.N Electric Callus Remover Machine? Soak off dead skin Before using, please soak your foot with warm water for 20-30 minutes, to soften feet skin. Tear off back layer of sandpaper disk Get a new sandpaper disk and tear off back adhesive protective film. Paste sandpaper disc on the machine It is self adhesive design, so the sandpaper discs will stick to the electric foot file well, will not fly off when working. Plug in outlet and set suitable speed Connect the device and plug into the socket, turn on switch and use it directly. In operation, you can control its speed through the speed controller, and better remove the dead skin of the foot.Caution: In use, please do not apply high pressure, otherwise the machine will not rotate and the machine will be damaged. The effect of after using You can use the electric foot file to remove normal dead skin, dry skin, cracked skin and so on.It is not suitable for severe foot calluses. After using, remove sandpaper disk After using, change a new sanding pad, 1 person 1 disk. (Because of the machine has smooth surface, you can easily remove sandpaper disk)