Bulk-buy: 20 pieces of off-white semicircular nail files allow you to share the happy time of nail art with your family and friends. Multi-purpose: Marvolia nail file is a must-have for home and professional nail salons. These nail files are suitable for fingernails, toenails, acrylic nails, natural nails, and false nails, fit for girls or women who like nail art. 100/180 double sides: These nail files have 100 and 180 two sides' grit that could meet your different needs.100 grit is rougher to shaping and filing, while 180 grit is good for smooth. Suitable size and shape: size 17.8*2.8*0.4, our nail file provides excellent results whether at home or on the go. The semicircular shape makes it very easy to file nails at all angles. Premium quality materials & reusable: Marvolia nail files are made of high-quality tape and sandboard materials, for which are not easy to bend and fall off grit. High quality makes it reusable.