The Original Wooden Pedicure File from Gehwol is manufactured from Swiss beech wood sourced from sustainable forests. Almost entirely handmade, the high-quality manufacturing process ensures the file lies perfectly in the hand with no risk of injury from sharp edges or splinters. Its stability and strength compare very favorably with cheaper, plastic files, says the company. The waterproof abrasive can be used on wet or dry skin equally effectively, with the rough side for reducing calluses and the fine side for smoothing.