Step up your hunting expertise with the Zink Calls Mallard Drake Whistle, which is made of polycarbonate for durability and tone. Designed to look like a mallard drake, the whistle features an easy-to-blow sound system, so even inexperienced hunters can use the call with ease. The Zink Calls Mallard Drake Whistle is made of polycarbonate and features an easy-to-blow sound system.Specifications and Features: Call Type: Duck Material: Polycarbonate