[Package Purchase]: 10 pieces of black straight nail file paper per pack. These files can easily help you shape your nails to the desired form or length. [Double-Sided]: 100/180 grit can make your nails smoother without damaging them. The rounded tip and double-sided design are accepted, the surface is sandpaper, and the middle layer is foam. [Washable And Reusable]: Its quick and easy to clean with water and can be used multiple times. File hard nails and toe nails with 100-grit side, use 180-grit side to smooth nail edges for a more refined shape. [High-Quality Material]: The nail file is made of high-quality self-adhesive tape and carborundum plate material, allowing you to shape and trim nails to your desired form or length without damaging them. [Features]: There must be professional nail salons and DIY nail salons at home, suitable for girls or women who love nail salons and for girls or women who love nails.