All the materials you need to tie 12 Hareball Leeches. Size 1/0 salmon hooks, Cactus Chenille, rabbit strips, lead eyes, schlappen, thread, and a sample fly. Choose from three different colors. Check out the video on our site for complete tying instructions. The Hareball Leech is one of Alaska’s most effective salmon flies. From silvers to kings to chum, Hareballs catch fish!