The Castellini Goldspeed handpieces are made from materials that are carefully selected and with the use of micro-machining techniques. They are accurate and light. They are also easy to maneuver and perform at optimal levels. The optimum balancing and quality of construction allow the handpiece to provide comfort during working. It also decreases vibration significantly. Furthermore, this range features the utilization of titanium, anti-retraction device, and incorporated fiber optics.