Pro Stonefly Kits from Pro Sportfisher bring together everything you need to create realistic, high-performance stonefly imitations. This innovative kit includes pre-printed, pre-cut and domed Stone Fly Nymph Shells with a UV-gloss finish, pre-cut legs for perfect precision, plus an integrated rib directly on the sheet for fast, efficient assembly. Simply add a hook, ballast, tail material and dubbing for a striking imitation perfect for trout and grayling fishing. Every detail has been thought out to faithfully reproduce the natural characteristics of the insect, while facilitating the work of the rigger. An ideal tool for combining speed, efficiency and realism in your nymph creations.