Varivas Fluorocarbon Shock Leader is one of the toughest leader materials available for casting, jigging and is ideal when high abrasion resistance is needed. The Fluorocarbon Shock Leader has a small amount of stretch to absorb the shock from hard hitting fish and to help keep the hooks in fish then they get close to the boat. It has great knotting ability and strength. FG and PR knots also bite into the leaders surface perfectly for a strong connection to your mainline. The Varivas Fluorocarbon Shock leader has great abrasion resistance so you can be confident during long drawn out fights.