Get incredibly smooth:When you use this foot calluses, which will gently buff away rough, dry and thick callused skin in no time, leaving your foot skin healthy, radiant and beautiful. No need to touch the embarrassing foot skin again Double size:Each have two sides, one side in coarse sand surface and the other side in fine sand surface.Meet your needs. No more pedicures:You can remove the dead skin at home anytime with anyone, save time and money.ome anytime , save time and money. Washable:This is designed for one-time use, clean and hygienic, but it does not mean that it cannot be reused .1 pcs can be reused at least 3 times.10 pcs can be used 30 times for one year.10pcs can be used by yourself or shared with family and friends, clean and hygienic.So use it size: 9.3 x 2.3 inches .Large yet light weight design allows you to work with ease and gives quick amazing smoothness. They are good pedicure tools. Perfect solution for dry ,calloused and cracked heels which gives soft fancy feet with little effort. Also suitable for Nail Shop ,Beauty Shop, Foot Massage Shop.