Seaguar Blue Label fluorocarbon has incredible impact and abrasion resistance. A fast sinking fluorocarbon with superior tensile and knot strength. Seaguar Blue Label is a 100% fluorocarbon leader material that allows you to use a smaller test leader than comparable nylons or fluorocarbon for unmatched bait presentations. No wonder itʼs preferred by anglers all over the world. Available in 25 yard spools.