High Quality and Durability: The nail drill bit sets are made of superior ceramic material that is durable and tough. Especially the excellent heat dissipation for faster cooling during high-speed and long-lasting spinning. Art Nails Polishing: Our electric nail file drill kit equipped with 7 different ceramic nail bits to meet your grinding demands on different nail areas. Combination of different bits to trim and polish your natural nails, especially for removing cuticles on edges and sidewalls and dead skin. Compatible with Most Nail Drills: The universal 3/32 (2.35mm) stainless steel shank fits most electric nail drills on the market perfectly. The nail bits sets are fixed in a case that you can easily put in your pockets or bags. Save Time and Money: Electric nail files are suitable for most nail drills. nails, you will not have an appointment with the nail shop in advance. In addition, you can DIY your nail art and just like bringing a nail salon home. 90 Days Warranty: Electric manicure kit suitable for manicure, pedicure and removing gel nails or dead skin. And if you have any questions about our products, please feel free to email us for more information. We will give you a full refund within 90 days for the quality problem.