Knight & Hale Knight and Hale Plastic Pot Turkey Call Glass over Slate 1503337. A glass top produces loud raspy yelps clucks cuts and purrs for reaching birds at distance while the slate bottom delivers smoother softer hen sounds for close work. Built on a durable injection-molded polymer pot it includes a hickory striker and scouring pads to condition the surfaces and fine-tune tone. Specifications for Knight & Hale Knight and Hale Plastic Pot Turkey Call 1503337: Manufacturer: Knight & Hale Color: Mossy Oak Greenleaf Camo Features of Knight & Hale Knight and Hale Plastic Pot Turkey Call: Two-sided pot turkey call Glass top striking surface Slate bottom striking surface Injection-molded polymer pot construction Hickory striker included Package Contents: Knight & Hale Knight and Hale Plastic Pot Turkey Call