Scholl Hard Skin Foot fileScholl Hardskin Foot file safely removes all degrees of hard, rough skin with it's two different abrasive surfaces. Leaves skin smooth and soft. With its easy to grip handle you can reach any area without difficulty. Washable and hygienic. Directions & Precautions Always read the label and use only as directed. First ensure that your skin is clean and dry. Use the coarser side to remove hard skin and the finer side to buff away any rough, dry skin.