Seaguar Fluorocarbon Blue Label Leader -Incredible impact and abrasion resistance. Fast sinking. Superior tensile and knot strength. Seaguar Blue Label 100% fluorocarbon leader material allows you to use a smaller-test leader than comparable nylons or fluorocarbon for unmatched bait presentations. No wonder it’s preferred by anglers the world over. Double-structure process fuses two 100% fluorocarbon resins to create a leader with exceptional knot and tensile strength Virtually invisible; made in Japan with cutting-edge innovation. It’s a versatile choice that’s proven on the water for dependability and consistency.