Super elastic alloynCan be stretched and bent at least ten times more than ordinary steel leadersnAllows a fish to apply an enormous bitenOur Knot 2 Kinky wire is a knottable, extremely kink resistant, superelastic alloy which can be stretched more than ordinary steel leaders without permanent deformation. The perfect formula of Nickel and Titanium alloys creates a kink resistant property which allows a fish to apply an enormous bite. The Knot 2 Kinky wire stretches and recovers while steel leaders snap under the same conditions.