1. Double sided different grit: (100/180 grit) The nail file set is suitable for filing natural and acrylic nails. Use 100 grit to rough hard nails and toe nails, while 180 grit can make the edges of the nails smooth. 2. Features of nail files: The streamlined shape feels great when held in hand, lightweight and portable. It can be quickly trimmed or shaped to the shape or length you want, and the travel size is suitable for your bag or suitcase, suitable for girls or women who like nail art. 3. Nail Tools: 25/50 pieces of gray nail files are suitable for removing natural and artificial nails, nail and foot treatments, as well as pet grooming. They are a good nail tool for homes and salons. 4. Reusable and Cleanable: The nail file is made of high-quality wood blocks and emery board materials. Natural nail files are easy to clean and can be rinsed with water. It is suitable for general nail or salon use, providing you with a comfortable nail enhancement experience. 5. Gift selection: Exquisite nails highlight a feminine temperament, and this nail file will be a useful gift for both girls and women, as they will be frequently used.