Carbon-fiber material allows for a more ergonomic, lightweight handpiece. Triple-spray diffuser with 3 separate air-water ports for optimum bur cooling. Ceramic ball bearings. Speeds up to 315,000 rpm. Recommended air pressure 2.7 bar. Monobloc optical glass rods and non-return water valve integrated into the handle are designed to resist numerous sterilization procedures. LED light offers optimum visibility and service life 10 times longer than that of a lightbulb. Large push button with anti-heating system facilitates bur-chuck loosening. 1-year warranty.