Traditional fiber optic handpiece cannot work without wire. Now our revolutionary new product E-Generator Fiber Optic Handpiece brings light without wire. This Handpiece has an internal Air-Driven Generator, which supplies fiber optic to light the tip of the handpiece. NEW SY E-Generator Fiber Optic Handpiece high performance 25,000 LUX. It also offers triple water spray. Improving visibility and cooling where you need it. 1. Super torque, standard head, mini head 2. 2 Hole/ 4 holes 3. Triple water spray 4. Fibre optic handpice with Air-driven generator inside; 5. Push button 6. Ceramic bearing 7. Noise Level: less than 70dB 8. Net weight: 88g 9. Torque Head Height 12.55 mm 10. Torque Head Diameter 14.4 mm 11. Air Pressure: 250-300Kpa 12. Rotation Speed: 310,000-350,000 RPM. Please contact us through SYdentistry website directly; we will get back to you within 24 hours.