Brand : Yusendent (produced by COXO). Model : CX207-GW-TPQ (torque head, coupler included). High Speed Fiber Optic Handpiece. LED Bulb in handpiece. Compatible with Roto Type Quick Coupling 6 Hole , coupler included. Germany Myonic Bearings , good quality, low noise and durable. 6 way spray (3 water, 3 air spray). Air pressure at the back end of HP: 0.25-0.27Mpa. Rotation speed: No less than 300,000rpm. Chuck type: Push button. Bur applicable: diameter 1.59mm -1.6mm. Noise: Less than 68dB. Work voltage: 3.0V -3.5V. The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies. You feedback is VERY important to us! We strive to exceed all your expectations and put a smile on your face. We stand behind our products and pride ourselves on OUTSTANDING customer service.