MAD's Super Ceramic pot call offers a special blend of ceramic produces sound that peaks at over 15,000 Hz. and is certain to make that old tom sound off. A Purple Heart striker brings very realistic yelps, cutts, clucks, and purrs while the Rainy Day carbon striker produces those very high pitched vocalizations for winding days or long range calling. Strategically placed sound ports in the bottom of the pot provide optimum sound quality. Exceeds 15,000 Hz. Pot diameter: 3-7/8".