The Big Bore specklebelly goose call is engineered to deliver the complete range and volume characteristic of a specklebelly goose, while ensuring ease of use through its integrated back pressure system. At the heart of this call is a unique internal gut system, the result of extensive research and development, and numerous 3D printed prototypes. The innovative pan style gut features a shallow yet exceptionally wide tone channel, maximizing the efficiency of your effort into producing sound. This design enables the call to produce loud, piercing yodels, as well as soft clucks and murmurs with minimal effort. Composition - molded polyacrylic blend Stealth Black Color Acrylic speck tone board core components Mylar precisefit speck reed