Double Sided Nickel Callus Foot File Abrasive Nickel surface will gently smooth away rough hard calluses. The smooth Nickel surface will smooth feet or heels after using the abrasive side. Easy to hold curved handle allows you to file hard to reach areas. Dual Sided Nickel Surface Abrasive Sides Removes Dry Rough Calluses Smooth Side will Smooth Feet & Heals Can be Used Wet or Dry Easy to Hold Handle