DetailsThe Diamancel 3 file has a coarse, 100 grit texture. The Diamancel 3 is for shaping and filing toenails and thick fingernails. Diamancel's Diamond texture is long-lasting, and has superior abrasive qualities. It has a fiberglass base that is both resistant and flexible making it easier and more comfortable to file. It is both washable and sanitizable. Each Diamancel file has been designed for specific nail types to beautifully shape and enhance both natural and sculptured nails.