The banana-shaped nail file offers excellent support in shaping and protecting nails. It is made of waterproof paper material, ensuring durability and ease of use. The hardness of 100/100 grits means it has the same texture on both sides, making it ideal for shaping the sidewalls of artificial nails, allowing them to easily achieve the desired shape. However, it is not recommended for shaping the nail body, as it may cause deep scratches.