Montana Fly Shanks were specifically designed to take the place of the popular Waddington Double Shanks that became popular with steelhead anglers who used them as the foundation of many intruder and stinger style flies. The production of Waddington Shanks has been discontinued. Montana Fly Shanks have a couple of advantages over the former product. They are made from stainless steel, so they are less prone to rust, a real advantage for saltwater use, and they are much less expensive. Montana Fly Shanks are strong, lightweight and have a thin profile. The only disadvantage is that both ends of the wire can be very sharp and take some special handling with thread and materials. Using a small file to smooth the ends may be required.