Injected out of durable A.B.S. plastic, moisture resistant. This call has an adjustable back pressure, achievable by removing bell from end. Can be blown either way. Exceptional volume along with control A true Canada Goose killer. Brings in geese like a magnet. Choice of Champions and professional guides nationwide and abroad. It is the old flute call that everyone used a few years ago before Tim introduced the short reeds. Still made in the USA.