Penn Fluorocarbon Leader, extruded from 100% virgin fluorocarbon, is a premier fishing leader material featuring a refractive index nearly that of saltwater, making for a next-to-invisible leader. Penn Fluorocarbon is packaged in 25-yard wrist spools from 10-lb test through 100-lb test, and 25-yard vinyl/mesh bags from 150-lb through 300-lb test. High-grade Penn Fluorocarbon is clear, at least when above water; once submerged, good luck finding it. Penn Fluorocarbon Leader is available only through Penn Gold Label Dealers.