These very stable predatory fish leaders profit in many ways from the qualities of the material that was used in their production. Tungsten, or as commonly known as Wolfram in German, is a very stable material that has found its way into these leaders. The hair-thin braiding with a small diameter holds up even under the sharpest predatory fish teeth. The high tensile strength of the material makes for a much thinner diameter leader. This not only means that the fish has a harder time to detect the leader, but also provides for better flexibility and thus a better bait presentation.