Mini Head but Strong Power, Designed for Children. Silent & Less Noise, Reduce the Fears of Children. 4 points Anti-retraction System, Avoid Cross-infection. Single Water Spray, Precise & Effective Cooling System. German Dynamic Balance Technology, Vibration-free. Ceramic Bearing with cover, Low noise, More Durable. No-flying-bur KV Type Chuck Spindle, Safe Treatment. **For further product information, please contact Chat Support**