The Tiemco hair stackers certainly live up to the lofty standards that we've come to expect from them. They're made from stainless steel to last through a lifetime of use, with three different sizes to cover any application out there. The Micro size is perfect for tiny dries, while the Medium will handle larger wings for terrestrials and stoneflies, and the Small will cover everything in between. They'll stack hair beautifully and work great for aligning tail fibers, too.