The Lares 557 Turbo+ lasted the longest when exposed to repeated heat sterilization, yet was the least expensive to purchase. The Lares 557 also received the highest ratings for ergonomics and access. Understandably, the study concluded that the Lares 557 Turbo+ represented dentistry's best highspeed handpiece value. New bearing suspension system for quieter operation. Super-small head. Light weight. Fast cutting power. Short length. Reduced contra angle. Ergonomic comfort. Smooth control. Push button bur changing. Fiber optics. Electro-polished. stainless steel handles last longer, easier to maintain. 1 year warranty.