Mylar File - Foam File for All Nail Types The Mylar file is perfect for safely filing natural nails or perfecting the filing of false nails. These foam files are washable thanks to their struttura Made of synthetic mylar. This extra-soft mylar material allows you to work on even the most fragile nails. Its rounded ends allow you to file even the hardest-to-reach areas. | Mauve format: 180 medium grit. | | Code 6068MM