Check the listing for details. Vintage Brass Hair Stacker for Fly Tying - Small / 3cmx1cm. Condition: Used. Listed at 14.00 USD. The Vintage Brass Hair Stacker for Fly Tying is a small tool measuring 3cmx1cm, designed specifically for organizing and stacking hair in fly tying. This hair stacker is essential for creating intricate and realistic fly patterns, making it a valuable addition to any fly tying enthusiast's collection. Made of durable brass, this single pack hair stacker is a reliable and versatile tool for achieving perfect fly patterns.