Description: PREMIUM CERAMIC MATERIAL - Made of superior ceramic material, these nail art tools are hard-wearing and durable with excellent heat dissipation, the bits won't be burning hot during long-time using. 6PCS SATISFY ALL YOUR NEED - 6 Different sizes bits for sharpening, grinding, polishing and reshaping gel acrylic gel nails and removing dead skins to keep your nails healthy. SAFE & EASY TO CLEAN - The ceramic material is antibacterial, corrosion and rust resistant, as well as no clogging for your nails, the smooth surface is easy to be cleaned by water and disinfected by alcohol, extremely safe for your nails. UNIVERSAL SIZE - Professional 3/32" stainless steel shank diameter fits for most electric manicure nail files machine on the market. OCCASIONS - Suitable for any professional manicurist or beginner, perfect for nail salon, beauty parlor, spa or personal manicure pedicure, DIY nail art at home, providing you a pleasant nail doing experience. Specification: Material: Ceramic Length: Approx. 40.5mm/ 1.59inch Shank Diameter: 2.35mm(3/32 inch) Package Includes: 6 Pieces Nail Drill Bit Set(2 Pack)