Hook: 1X-long nymph or wet-fly hook, such as the Mustad 3906B, sizes 16 to 10. Thread: Black 6/0 (140 dernier). Tail: Red fox squirrel tail hair or long guard hair from the flanks of a red fox squirrel pelt. Body: Squirrel belly colored Antron or red squirrel belly fur dubbing. Rib: Copper wire. Collar: Red fox squirrel hair placed in a dubbing loop.