These nymphs sink fast and feature jighead hooks and most feature Tungsten beads. While commonly used as European style nymphing flies, these patterns are very effective under strike indicators or dry flies as well. They tend to slide over the rocks and minimize snags even though they are heavy and frequently contact the bottom. You are also much more likely to hook trout in the upper lip, giving the angler more control and a greater ability to land the trout.