Power Calls Clash Big Bore Snow Goose Call - This Big Bore Snow Goose call is designed to have the full range and volume of a Snow Goose while maintaining user-friendly operation with its built-in back pressure. The unique gut system insures that every ounce of effort you put into this call will be transferred into sound. Structure: Molded Poly/Acrylic Blend Coloration: Stealth Black Core Guts: Acrylic Snow Goose Toneboard Reed: Mylar Snow Goose Reed Packaging: Clamshell