Compression Spring Precision High Carbon Steel Music Wire Finish Plain Overall Length 1 1/2 In Outside Dia 0.600 In Wire Type Round Wire Dia 0.045 In End Type Closed and Ground Compressed Length 0.350 In Load 7.22 Lbs Deflection @ Load 1.11 In Spring Rate 6.5 Lbs/In Meets/Exceeds ASTM A228 Package 5