The Duel Executioner Goose call features Green Nitrile O-rings that will not expand or contract with changing temperatures, ensuring a perfect fit and seal. It is high-pitched, fast and loud. It features a small barrel bore and tight bore insert. The large flared barrel releases back pressure. It is perfect for reaching out to large flocks and recommended for those used to short-reed calls, includes replacement reed. DUEL has teamed up with cult call maker, Fowl Justice (LJ Cossey), to bring you an entire line of premium, high-performance waterfowl calls! Every DUEL Fowl Justice call is made of custom-rendered 100% cast swirl acrylic that is hand polished to achieve a jeweler's finish. Each call is also expertly hand assembled and personally hand tuned. Made in USA.