Extension Spring, Utility, High Carbon Steel, Zinc Plated, End Type Crossover Center Loops, Overall Length 6 In, Outside Dia 3/16 In, Wire Dia 0.023 In, Load 1.80 Lbs, Deflection @ Load 0.35 In, Spring Rate 11 Lbs/In, Meets/Exceeds ASTM A227, Package 6