BOXI 1 Pcs Gas Charged Universal Lift Supports Struts Shocks Extended Length 18.50 inches, Compressed Length 11.25 inches, 45 lbs Force, 3/8" Ball Socket 6933 Extended Length [in] 18.50 Compressed Length [in] 11.25 Force (lbs) 45.00, ext.ser.num 200N Shaft End Fitting: Ball Socket U Band =10mm=3/8"=.39" Body End Fitting: Ball Socket U Band =10mm=3/8"=.39"