Knight & Hale Knight and Hale Plastic Pot Turkey Call Slate over Glass 1503335. A slate top produces clear natural yelps clucks cuts and purrs while the glass bottom delivers crisp mid-range tones. Built on a durable injection-molded polymer pot it includes a hickory striker and scouring pads to condition the surfaces and fine-tune sound. Specifications for Knight & Hale Knight and Hale Plastic Pot Turkey Call: Manufacturer: Knight & Hale Color: Mossy Oak Greenleaf Camo Features of Knight & Hale Knight and Hale Plastic Pot Turkey Call: Two-sided pot turkey call Slate 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