[Bulk Buy]: Get 10 black straight nail files emery boards per pack. These nail files easily help trim and shape nails to your desired shape or length. [Double-Sided]: 100/180 Grit allows you to file your nails with a lighter touch without damaging the nail. Designed with a rounded top, double sides, sandpaper on the surface, and foam in the middle layer. [Washable & Reusable]: Quick and easy to clean with water, can be used many times. File and roughen up hard fingernails and toenails with the 100 grit, and use the 180 grit to smooth the nail edge with a refined shape. [Premium Quality Material]: Nail files made of high-quality tape and emery board material, trim and shape your nails to your desired shape or length without damaging the nail. [Function]: A must-have in professional nail salons and for DIY nail art at home, suitable for girls or women who enjoy nail art.