Diamancel files provide fast, easy, effortless filing. They are extremely durable, their superior abrasive qualities will outlast all other files. Diamancel files are also washable and sanitizable. The fiberglass base is resistant and flexible making filing easier. Each Flexible Diamond Nail File in the Diamancel family has been designed for specific nail types to beautifully shape and enhance both natural and sculptured nails. BONUS BUFFING BLOCK INCLUDED WITH ALL FILES.