Application It can be used for various vehicle maintenance work, such as changing tires, releasing tires, fixing tires, etc. It is suitable for the maintenance and repair of transportation types of equipment, such as trucks, vans, loaders, excavators, tractors, harvesters, etc. Specification Material: Aluminum, Iron, Steel Color: Silver, Black Process: Electroplating Inner Cylinde Diameter: 186mm/7.32in Connection Hole: M14 Length of Piston Rod: 380mm/15inch Gross Weight: 6kg/13.2 lbs Package Size: 52*23*30cm/20.4*9*11.8in Package Included 1* Tire Changer Bead Breaker Cylinder.