1:5 Fiber Optic Contra Angle. Small head slim body Low noise & vibration Anti-overheating system Durable1:5 speed increasing Clean head system High brightness. Lighting Better cooling effect High hardness WearableCorrosion resistance. Smallest head fiber optic handpiece. Bur applicable:Ø1.59-1.60mm.1:5 No-LED Contra Angle. Air pressure: 0.3mpa-0.35mpa. Rotate speed : 10,000-200,000rpm/min. Suitable for disinfection of high temperature steam at 135? The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies. FDA for Curing Light: 510(K) Number: K192233, Regulation Number: 21 CFR 872.6070, Product Code: EBZ. FDA for Handpiece: 510(K) Number: K181691, Regulation Number: 872.4200, Classification Product Code: EFB, Subsequent Product Code: EGS. FDA for Scaler: 510(K) Number: K163414, Regulation Number: 872.4850, Product Code: ELC.