[Package List] 1x white elelctric foot file, 1xbox repacement sandpaper disk(60pcs), 1xUS plug, 1xuser manual. [Alloy Body] Nice polished craft, durable and looks more elegant, perfect gift selection. [Replaceable Sandpaper Disk] Self adhesive refill pads, you can paste on machine well, won't fall off when works. After using, change a new sandpaper disk for another people, one people one disk, sanitary and healthy. [Speed Adjustable] This electric callus remover machine has an indenpendent speed controller, you can easily adjust various speed, fast or slow is up to you. Please Note: this is home use electric foot sander is only for normal dead skin, not for thick callus, if you have serious foot issues, please go to the professional nail spa. [Not Battery Operated] Just plug it into the socket and you can use it immediately. PLEASE NOTE: This electronic foot sander is not rechargeable, so you don't need to worry low battery again. Electric Callus Remover (Speed Adjustable) with 60pcs Replacement Sandpaper Discs, Professional Electronic Foot File Sander Pedicure Tool for Dead Skin Heel Dry Skin , White White Electric Foot File