Compression Spring Precision High Carbon Steel Music Wire Finish Plain Overall Length 1/2 In Outside Dia 0.300 In Wire Type Round Wire Dia 0.022 In End Type Closed and Ground Compressed Length 0.106 In Load 1.89 Lbs Deflection @ Load 0.29 In Spring Rate 6.5 Lbs/In Meets/Exceeds ASTM A228 Package 5