Having already won 15 beauty awards, the Leighton Denny Crystal Nail File has become an iconic manicure essential. Unlike traditional nail files, you can file back and forth with the double-sided Crystal Nail File without damaging the nail, making it quick and easy to use. The unique surface glides along the nail edge, leaving the nail edge feeling smooth and sealed to help prevent splitting and peeling at the tips. The 90mm mini travel file comes in a reusable eco storage case. File includes a 25-year guarantee for the file surface never to go dull. For natural nails only - not suitable for gel or acrylic nail enhancements.