DescriptionPro Sportfisher Pro Trout System Adult Stonefly Wings are pre cut pre formed stonefly wings that help you create realistic and light weight adult stonefly imitations. Each pack comes with 8 double wing forms that are ready to tie in and color with copic markers. If you want to get really fancy tie the wing in between nymph shell back # 1 and # 2 and color the wing and head with a copic marker and you will have a buggy realistic adult stone. Size small for 12-8 and size medium for 8 and 6. Ideal for creating golden stone fly patterns for heavily pressured stonefly hatch rivers. Madison Deschutes and more.