Specification: Metal Name: Metal Double Cylinder Pump Product Material: Metal, Copper Winding Pumping Speed: 1 Minute to Cheer Quickly Hose Length: About 5 Meters Rated Voltage: 12-13.8v Product Weight: About 6.5kg Wire Length: About 2.5 Meters Product Size: (LxWxH)29x13.5x17cm/11.4x5.3x6.7in Air Pressure: 150 Psi Atmospheric Pressure: 8-12kg Application: Filling a Tire, Checking the Pressure, Adjusting, Checking, and Repeating over and over Again, Simply Fill the Tire to the Exact Pressure You Want. Package: 1*Pump.