Hook Measure Hackle (3pcs)Fly-tying hooks for building patterns to the stated style and size. Review the confirmed barbed status, quantity, and size information below before choosing.A Practical Addition to Your Fishing SetupClear specifications and organized features make it easier to confirm whether this item fits your fishing needs.Key Features & SpecificationsSize: 3" × 1" × 0.25"Hole Diameter: 0.39"Material: WoodPackage: 3 hackle gauges included - Designed to fit most standard fly tying vise stems, making it convenient to keep the gauge at your tying station. - Helps determine the correct hackle size for the hook when tying dry flies. - To measure, bend the feather into a “U” shape and hold the stem against the lower edge of the gauge. - Extend the hackle fibers upward toward the size markings. - The number where the fiber tips reach indicates the hook size the hackle is best suited for.SpecificationsAvailable option: Standard product configuration