Some anglers believe the positive ions released by copper in water help attract fish like salmon and trout.
This is the most rigid of the standard stranded configurations (stiffer than 1x19 or 7x7). Copper 1x7
Copper is 13% denser than stainless steel, allowing the line to sink faster and reach greater depths with less line in the water. Some anglers believe the positive ions released by
Beyond fishing, 1x7 copper (or copper-clad steel) is used in electrical and structural environments: Copper 1x7