An almost lifetime-lasting file for shaping & shearing 'sculptured' nails & tackling tough toenails. For: very thick natural nails, toe nails & sculptured nails. Ideal for shaping & filing sculptured gel nails. Can be soaked in acetone-based removers to dislodge all types of residues. To sanitise, soak file in anti-bacterial solution. Nickel-coated flexible fiberglass file, electroplated with industrial grade diamond chips. Also known as ' The Tough Guy'.