RIO Powerflex Wire Bite Tippet Guide Spool 50ft 

Tough, flexible, nylon-coated wire leader line that is super easy to tie a knot with - ideal for fierce, sharp-toothed predators such as Mackerel and Barracuda as well as freshwater species like Golden Dorado

RIO's Powerflex Wire Bite Tippet is a tough, flexible nylon-coated wire that's perfect for those sharp toothed critters. This knot-table, braided wire is supple enough to tie directly to the fly. Available in three size options; 20lb, 30lb & 40lb, with 50 feet on each "Guide Spool"  *also available in regular civilian size of 15ft.