Ship from USA to USA, Ship from China to Other Countries! Technical Parameter: Available Air Pressure: 2.4-3.2kg/CM2 Working Frequency: 6100Hz-6600Hz Autoclavable Sterilize: 135℃ Weight with box: approx 170g (2 holes), approx 180g(4 holes) Packing List: Ultrasonic Scaler * 1 Universal Spanner * 1 Tips * 3 (G1,G2,G4)