Trout Hunter Fluorocarbon Tippet offers superior knot-holding and abrasion resistance compared to nylon tippet. And it becomes nearly invisible on the water thanks to fluorocarbon's inherently low refractive index. Since fluorocarbon does not absorb water, the Trout Hunter Tippet does notstretch, weaken, or add weight over time, all of which can occur with nylon. While it may be more than the price of nylon, the Trout Hunter Fluorocarbon Tippet gives you that extra edge when it really counts. 50 meter spool Excellent knot-holding performance Superior abrasion resistance Zero water absorption Low refractive index.