Double-Sided Nail File 100/180- This Nail Files Offers Two Different Grit Sizes: One Side is 100 Grit, Suitable for Shaping and Buffing Nails, as Well as Various Gel or Acrylic Nails; The Other Side is 180 Grit, Used for Polishing and Trimming Nail Edges, Particularly Suitable for Sensitive Nail Care or Fragile Nails.