Olympic Peninsula Skagit Tactic’s new Intruder Shanks are specifically designed with trailing-hook flies like the Intruder and Dirty Hoh in mind. They come in 32, 51 and 75mm )1, 2 and 3 inch) sizes for everything from small shanked string leeches and Dirty Hohs to the largest Intruders you can imagine. These shanks are designed for cones and bead heads, but they also work great with dumbbell eyes. In packs of 20 for only $9, they are a great value. The handy plastic box packages are reusable for use with any small items you may want to keep safe.