Dental Lab STRONG 90Polishing High speed Handpiece 35K UNIT. Compact sized control box with precise smaill & strong micromotor handpiece.Very High-powered and quality 0-35,000rpm. Non stage speed system(it's well designed to output from zero to 35,000rpm by using non stage speed system). Right & Left turning ability. You pay us what you see on the invoice, i. Or replace item for you free of charge. Your feedback is very important for us. You will be greatly appreciated.