Build articulated flies with stainless steel shanks in precise size options.Spawn Fly Tying Articulated Shanks support exact fly connections with sizes from 9 mm through 20 mm in 1 mm increments, plus 25 mm, 35 mm, and 55 mm options. Choose 20 packs, 50 packs, or a variety pack with selected sizes for fly tying projects.Key Features High quality stainless steel construction Plain color Designed for fly tying articulated flies Available in 20 packs, 50 packs, and variety packs Product Details Sizes: 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 25 mm, 35 mm, and 55 mm Size range includes 1 mm increments from 9 mm to 20 mm What's Included 20 pack options include 20 articulated shanks 50 pack options include 50 articulated shanks Variety Pack includes 5 each of 11 mm, 15 mm, 20 mm, and 35 mm shanks