Twister™ is an innovative method for daily floor maintenance that cleans and polishes a variety of unprotected floors by using floor pads prepared with billions of microscopic diamonds. It is a simple, safe and cost-efficient approach to professional cleaning, producing astonishing results on any type of floor. It will improve scratch repair on all types of finish. Floor Machines Type: Scrubber; Brush Diameter: 20"; Maximum Rotation Speed (RPM): 150 RPM to 330 RPM; Quantity: 2/Carton.