What it is: A large-scale glass file made specifically for your feet.What it does: Luxe, lightweight and thoughtfully designed for comfort and ease of use, this glass foot file helps remove thick, rough skin and smooth away stubborn calluses effortlessly. A superfine grit effectively refines while working gently on skin. How to use: Do not use on broken or irritated skin. May be used on dry or wet feet. Apply gentle, even pressure while filing toward the center of the foot. Wash tool with mild soap and water as needed, then let dry.