The Duel Jailbird Duck Call is milled in anti-slick grooved tone boards to reduce the amount of surface area between reed and tone board making it virtually impossible to freeze-up a call. A cork wedge holds the laser-cut Mylar reed in place. This open, water/field call features a large-bore diameter for loud, in-your-face volume. It is designed to hit high "hail" notes that reach across big water while still nimble enough for chatters and feeding calls. 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.