100, 180

7.01 x 0.79 x 0.16 inches 7.01 x 0.79 x 0.16 inches/ 17.8 x 2 x 0.4 cm emory boards for nails Double sided emery boards: file and rough up the hard fingernails and toe nails in 100 grit, and use 180 grit smoothing up your nail edge with refined shape Multiple usages: these nail file and buffers are suitable for fingernails, toenails, natural nails, acrylic nails and false nails, fit for girls or women who like nail art Do it yourself freely as like at salon: Professional nail file, they have rough grit that can sand down the large ridges in your nails, it also helps get the glue off, will be save money from nail's shop. Washable and reusable: Easy to clean & water resistant.