Aquateko&';s Knot 2 Kinky Nickel Leader Wire is made with a special superelastic alloy, allowing it to be bent at least ten times more without permanent deformation. Its unique formula of Nickel and Titanium creates a high degree of elasticity and strength that can endure even the toughest battles with fish. It is further programmed to stay straight with a complex annealing process for reliability. With higher tensile strength than ordinary steel leaders, Knot 2 Kinky is the ideal choice for both inshore and offshore fishing, eliminating the frustration of constantly changing kinked rigs. Knot2Kinky wire leader is knottable, you don&';t need crimps or tools for this leader. It is extremely elastic yet has a very high abrasion resistance. It&';s made of nickel titanium so it has stretch, won&';t rust, ties with easy knots, and replaces normal steel wire. Length 15 feet Please see image for diameters.