Make hopper legs headache-free. The Wasatch hopper leg knot tying tool is designed specifically to tie knotted legs in hopper and cricket fly tying patterns. The leg knot tying tool can be used with turkey quills, pheasant tails, and rubber legs. Instructions are included with each leg knot tying tool. Use the small one for making small to medium knots and the large one for bigger materials (i.e. rubber legs, etc).