Cabela's Sparkle Flash Fly Tying Material is comprised of flat, fine strands of reflective mylar that are twisted, giving the flash an intermittent scaly look. Sparkle Flash will pick up light from any direction. Can be used for a wide variety of fly-tying applications; such as placing a few fibers in a parachute post to help visibility. Flat fine mylar strands Intermittent scaly look Picks up light from any direction