Pro Sportfisher's Pro Shrimp Shell Skeletor simplifies the creation of shrimp flies by combining a realistic back shell with integrated eyes. With these components, you simply form a base of dubbing, thread, foam or other material, position the shell, secure it with a nylon rib, and your fly is ready. Available in 8 colors and 4 sizes, these versatile hulls are perfectly suited to the needs of fly fishermen targeting species such as sea trout, bass or other coastal predators.