Enjoy the smooth mallard sound of the ATM Green Machine without shelling out so much green from your wallet with the Zink Calls ATM Green Machine Polycarbonate Duck Call. Made from the same molds as their custom acrylic namesake, the ATM Green Machine Poly call features the same double reed heart and Z-CUT no-stick tone channel. This proven combination gives callers a huge range of tones, while virtually eliminating reed-lock. Giving duck hunters great volume and wonderful bottom-end sound from a call that's a little friendlier to the budget, the ATM Green Machine Poly is a great choice for any duck hunter's lanyard. Double reed Zink's Z-CUT no-stick tone channel - eliminates reed lock Huge range of tones with great bottom-end sound Polycarbonate construction