Material: Sandpaper and EVA. | Size: Length 5.5 cm (2.17 inch), width 5 cm (1.97 inch), thickness 0.4 cm (0.16 inch). | Quantity: 40 Pieces nail files in one pack, can carry in your pocket or purse, don't take up much space. | Designed with heart shape and double sides, can provide you a rather comfortable nail filing experience. | Quickly and easily help you trim or shape acrylic nails to the shape and length you want without damaging them.