Features: Clear view with day-light LED illumination. Triple spray holes with internal water cooling system, effectively cool the heat generated by grinding teeth. 135 high temperature and Autoclavable disinfection, no deformation. Contra angle with push button head, easy to use. Ultra-low noise, stable rotate speed and powerful. Specification: Type: Dental Handpiece Material: Stainless steel Color: Silver Model: 4 holes, 2 holes (Optional) Operating Pressure: 0.25Mpa-0.3Mpa Air Consumption: 55L/min Chucking Power: 20-45N Applicable Burs: Diameter 1.59-1.60mm ISO Confirmed Noise: 70db Rotate Speed: 25000-30000r.p.m Package Size: 16 * 5.5 * 3cm / 6.3 * 2.2 * 1.2in Package Weight: 121g / 4.3oz Package List: 1 * Dental Handpiece 1 * Bur 1 * Wrench 1 * English Instruction