Before use, soften the corn or callous in warm water. Then hold the Corn and Callous Knife against the painful area and carefully pare down the hard skin with thin shavings. The space between the blade and the blade protector is graduated. Light paring is best done with the area close to the handle, for heavy paring use the area close to the blade's point.
Diabetics and people with poor circulation should consult their Doctor or Chiropodist before using this product.