Now you can match the color of your trailer hook wire to your fly with Senyo’s Intruder Trailer Hook Wire. Senyo has tested this stuff, doubled over like you’d tie it on an intruder, at over 50lbs tensile strength. Stiff enough to hold your hook in the right position without fowling, this product is our new go-to when tying any articulated fly. For hook sizes 6 or larger, package includes 4 yards of material.WARNING: Cancer and Reproductive Harm -www.P65Warnings.ca.gov