This is the spring Needak made famous in 1992. Others have tried to copy this unique design, but cannot match the softness and longevity of this spring. It features the unique barrel shape and music wire construction to last 1 million bounces. Optional Lube pack (silicone/teflon blend) will cover both hook connection points.
Note that due to variations in manufacturing, spring colors can vary, but performance is not affected.
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