The Duel Double Trouble Friction Pot Turkey Call features a large 4" call diameter which allows for louder call volumes, a wider range of call sounds, ErGo twist design for call-holding comfort, dual-chamber sounding board for more realistic, more robust call sounds, Stratobond-infused maple laminate call walls for 40 percent better sound resonance and eliminates warping, Sound boards are CNC-machined on both sides for accurate sound reproduction across the entire call surface, Features a one-piece pillar construction that suspends call surface for sound integrity, Also has 2 calling surfaces in one-ocean slate on one side and smoked borosilicate pure crystal on the other and allows the use of 2 calling surfaces of the wild turkey's vocabulary, Includes a Max Grip striker and silicone cover