Feature: 1.Made of natural diamond powder, high haedness to make sure the sharpness of burs 2.The diamond powder is fixed under high technology to ensure bur durability 3.Processed with high precision CNC lathrs to make the shanks be of highly precise dimension and common roller and won’t swing, which to make it more convenient for dentists to operate and the handpieces’ roller and elextree not be damnified 4.Using high-quality stainless steel, no rusty and high strength. Package included: 10 Pcs Diamond Burs