Specification Material: Steel, Plastic Color: Silver Process: Galvanized Assembly Required: No Number of Pedals: 4 Power Source: Pneumatic Control Method: Foot Pedal Product Size: 37*33*11cm/14.57*12.99*4.33 in Package Size: 45*40*20cm/17.72*15.75*7.87 in Gross Weight: 4.4kg/9.7 lbs Package Included 1* Tire Changer Machine Car Air Control Valve.