Curved Nano-Glass Foot FileWhy We Love Them Gentle Exfoliation: The etched glass surface removes dry skin quickly without causing micro tears or irritation. Wet or Dry Use: You can use them on dry or damp feet, making them highly versatile for use in the shower. Hygienic & Durable: Because the glass is non porous, it wont harbor bacteria like pumice stones. The surface does not wear down over time, making it infinitely reusable. How to Get the Best Results Prep: While you can