Features 1. Opening cartridge, compatible with kavo. 2. Push button chuck system, easy to change the bur. 3. High power with perfect head size to performance ratio. 4. Anti-retraction function avoiding cross-infection. 5. 3 / 4 water spray, better atomication. 6. 2hole/ 4hole available, universal to golbal dental unit. 7. Similar shape as KAVO dental handpiece. 8. Ceramic bearing. 9. Built-in generatior, LED light source, nature light.