These are double-sided professional high-tech files! Very solid and ergonomic. They are made from Japanese abrasive paper known for its qualities such as durability, strength and efficiency. These files can be washed and sterilized. You can choose from different levels of roughness and between two shapes (straight or half-moons). The files with the rugged surfaces are intended to file the artificial nails, the soft files are perfect for the natural nails. Length 9 cm x height 2,5 cm x width 2,5 cm.