Field Proven Calls Single Shot Poly Duck Call delivers more than a realistic variety of mallard hen calls, it delivers ducks... over and over again. The master-crafted Single Shot Duck Call boasts a single reed for consistent calling in any environment, large bore, and a hand-sanded tone board personally and perfectly tuned by the Hudnall brothers. The durable polycarbonate construction ensures the Field Proven Single Shot Poly Duck Call outlasts even the most devout duck hunting enthusiast. Includes a manufacturer's lifetime warranty. Premium large-bore duck call Single reed design Designed to create a variety of mallard hen calls Durable polycarbonate construction Hand-Sanded tone board perfectly tuned and tested by the Hudnall brothers Includes a lifetime warranty