ForPro Amazing Pedi System Refill Strips are made of the finest 80 grit sandpaper. It helps remove rough skin and calluses from heels and feet. These pedicure file strips are designed to use with ForPro Amazing Pedi System File to smooth dry and cracked skin leaving feet and heels feeling baby-soft. Each refill strip features strong adhesive that grips the handle and easily peels on and off without leaving residue. These water-resistant refills can be used on wet or dry skin. They are washable and sanitizable. Excellent for use in salons, spas, at-home, and on the go. For best results: Use a new refill for each service. ForPro white disposable refill pads come in a pack of 20 and measure 5” L x 2.5” W each.