Knight & Hale Knight and Hale Plastic Pot Turkey Call Aluminum over Glass 1503336. An aluminum top delivers sharp higher-pitched yelps clucks cuts and purrs while the glass bottom produces clear softer tones when birds are in tight. Built on a durable injection-molded polymer pot it includes a hickory striker and a scouring pad to condition the surfaces and dial in sound. Specifications for Knight & Hale Knight and Hale Plastic Pot Turkey Call 1503336: Manufacturer: Knight & Hale Color: Mossy Oak Greenleaf Camo Features of Knight & Hale Knight and Hale Plastic Pot Turkey Call: Two-sided pot turkey call Aluminum top striking surface Glass bottom striking surface Injection-molded polymer pot construction Hickory striker included Package Contents: Knight & Hale Knight and Hale Plastic Pot Turkey Call