Extension Spring, Safety Drawbar, High Carbon Steel, Zinc Plated, End Type Closed Drawbar, Overall Length 8 1/2 In, Outside Dia 1.746 In, Wire Dia 0.148 In, Load 54.08 Lbs, Deflection @ Load 4.00 In, Spring Rate 13.52 Lbs/In, Meets/Exceeds ASTM A227. This item has been restricted from sale in the following state (s): []