Excellent Emery Board Nail FileAt perfect size of 7.09 x 1.10 x 0.16 inches, made of Korean sandpaper, ECO sponge and strong PP board, the nail files designed are not only high-quality but also healthy and safe to your skin. Different Function of the Emery BoardsThe emery board nail file is ideal to file and rough up the acrylic nails, dog nails and hard toenails in 100 grit; 180 grit fits for fingernails and cat nails, while 240 grit smooths up your nail edge with refined shape The Best Choice of Nail FilesOur nail files are easy to rinse with water which makes them more durable. The Korea made sandpaper barely leaves color on your nails. The thicker thickness makes it harder to break and more handed comfort. And wider size design makes them more effective to use. Multiple UsagesProfessional nail files can be used to remove acrylic nails & dip powder nails, remove nail cuticles, poly nail gel & gel nail polish, shape fake nails and to do manicure & pedicure. Suitable for pregnant women, frequent travelers, nail art lovers, instrument players and office workers who have no time to do manicure.