Zink Calls ATM Green Machine Polycarbonate Duck Call - Gun Smoke - Molded after their original custom acrylic namesakes, polycarbonate calls integrate the premium quality and natural sounds you've come to expect from Zink – but with the hunter's budget in mind. All polycarbonate calls come equipped with an easy-blow sound system, so even novice callers can produce undeniably realistic sounds. Same Calling Abilities And Design As The Original ATM Green Machine Great Introductory Option Double Reed Specialty Insert: Z-Cut, No-Stick Tone Channel Made In The USA