RIO 6-24404 Powerflex Plus Leader is one of the strongest trout leaders ever made, with as much as 20% more tensile strength than regular leaders. Thanks to a technical modification of the nylon copolymer formulation, a prodigious increase in strength is possible without the need to compromise knot strength or suppleness. Simply put, RIO Powerflex Plus Leader is the strongest, most reliable trout leader ever made. Each pack contains 2 premium leaders, each of which has a hand tied perfection loop in the butt end for fast rigging.