Ultra-thin, super tough, flexible wire leaders. Hand-wrapped for maximum strength. Eliminate bite-offs without impeding lure action. Works well with action-sensitive lures, such as balsa shallow-runners and deep-diving crank baits. All 12 lb. and 18 lb. leaders are fitted with strong Duo-Lock snaps. The 27 lb., 36 lb. and 55 lb. leaders come with extra-tough Coast Lock fast snaps.