Specification Material: Aluminum, Iron, Steel Color: Silver, Black Process: Zinc Coating, Electroplating Inner Cylinde Diameter: 186mm/7.32in Connection Hole: M14 Length of Piston Rod: 280mm/11.02in Gross Weight: 6kg/13.2 lbs Package Size: 52*23*30cm/20.4*9*11.8in Package Included 1* Tire Changer Bead Breaker Cylinder 1* Valve 1Set* Rings All Accessories for Assembly.