RIO's Fluoroflex Trout Leaders are made of 100% fluorocarbon, and are the perfect solution for when a nearly invisible presentation is required in clear water and for spooky fish. Each leader has high abrasion resistance and excellent tensile and knot strength, and have a long butt section that will turn over flies effortlessly. Each leader is 9' long, and available in 5 sizes from 6X (3lb) to 2X (8lb).