Product Material: Ceramic Package content: 1*Grinding head set (5 piece set) 1.Premium Ceramic Material Made of superior ceramic material, these nail art tools are hard-wearing, sharp, and durable and also crafted with delicate. With an excellent heat dissipation, the bits wont be burning hot during long-time use like metal ones. 2.Multifunctional 5 different shapes and sizes: a coarse torch bit, medium-large barrel and small flame bits, fine barrel ball, and umbrella bits. You could sharpen, grind, neaten, carve, smoothen, polish, and reshape gel and acrylic nails very quickly and efficiently, usually on the lowest setting before redoing the manicure or pedicure. 3.Time and Money Saving Takes off the gel polish, dip powder, or acrylic layer in half the time without any effort. Make the cuticle clean up a breeze. Dont worry about spending more time in an expensive salon. Bring the beauty salon home now. 4.Easy to Clean and Safe for Nails The ceramic is corrosion resistant, as well as no clogging for nails. The smooth surface is easy to be cleaned with water after each use, It is so important to keep your and your clients nails healthy. 5.Fits Well with Most Nail Drill Universal 2.35mm stainless steel shank perfectly suits for most professional electric nail drill on the market. These bits for nail drill machines are the best gift for beginners to start their journey to the nail art world and helpful partner for professionals to make manicure and pedicure professional.