Wow, what a great product! I never liked filing my nails until now! It seems as though I don't get the "fingernail on the chalk board effect" with these mini files! Easy to grip and convenient to carry in your pocket! I really like the different design patterns, the different patterns make it easy to distinguish the different coarse grains. Truly a wonderful product. Should be given as a gift at Hotels and SPA's!! I'll be sure to re-order, thanks so much team Style File Mini