specification: Item Type: Dental Burrs _x000D_Material: Stainless Steel _x000D_Characteristics: A variety of models selection, can reduce wear and tear of the burrs, improve the service life Features: 1Handle made of high?grade stainless steel, high strength, no rust. The maximum speed is 450,000RPM/ min. 2The grinding head has high hardness and wonderful wear resistance performance for durable use. 3Excellent for fine detail work, cutting, engraving, carving, and finishing, specila designed for dental use. 4Come with storage base of the dental burrs set, designed with transparent cover for better preventing dust. 5Including a total of 10pcs dental handpiece burrs of the package, meeting your different demands. PackageList: 10 x Dental Burrs