Another virtue is non-stage speed system (it's well designed to output from 0--35,000rpm by using non stage speed system). Handpiece:Simple and easy operation (twist the handle counter-clock wise to change the bur and can be easily restored back to the original position).The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies. The item "45W Marathon Dental Lab Electric Polishing Micromotor M3+35K RPM Motor Handpiece" is in sale since Monday, March 15, 2021. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Handpieces & Instruments\Dental Handpiece Motors & Turbines". The seller is "dentalbaistra" and is located in SHENZHENG. This item can be shipped worldwide.