This product may be intended for use by a health care professional use only. The seller may ask you to evidence you are a qualified health care professional entitled to buy and use such products in your country.Item Name : Diamond DrillGrind Teeth: Fine,Medium,Coarse,Extra CoarsesShank Diameter : 2.35mm (3/32inch)Usage : Nail Drill, Manicures, Nail polishing, Nail File, Nail Art Salon, Foot Care, Pedicure, Electric Manicure Drill, Teeth Whitening, Dental Laboratory, Callus Clean,Dentist DrillPackage List : 10pcs