Professional nail file and buffer set,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. Also can used for your pet. 20 pieces nail files,Size: 7.01 x 0.79 x 0.16 inches/ 17.8 x 2.8 x 0.4 cm File and rough up the hard fingernails and toe nails in 100 grit, and use 180 grit smooths up your nail edge with refined shape These tools are suitable for fingernails, toenails, natural nails, acrylic nails and false nails, fit for girls or women who like nail art If you have any question about our product,we will give you no reason return and refund Features: Material:Sandpaper + EVA Color: Silver Size: 17.8 x 2.8x 0.4cm Quantity:20 pieces Surface: grit 100/180