Hook: Heavy-wire, 1X-long nymph hook, sizes 16 to 12. Thread: Brown 8/0 (70 denier) or 6/0 (140 denier). Rib: Fine copper wire. Weight: Three layers of copper or lead wire. Body: Natural hare’s mask dubbing or squirrel dubbing to match the color of hare’s mask. Tails and wing case: Natural pheasant-tail fibers.