This wok ring is crafted from heavy-duty cast iron to maintain structural integrity and retain heat effectively during high-temperature cooking. Its 9.37 in. outer diameter accommodates most standard gas burners, while the precisely machined 0.36 in. concave grooves grip stove grates firmly to prevent movement. The concave design centers round-bottom cookware-such as carbon steel, cast iron, hammered, or traditional woks-directly over the flame for uniform heating. It works with a wide range of gas ranges including Samsung, GE, KitchenAid, Frigidaire, Bosch, Thor Kitchen, Kucht, and Whirlpool models. The open-center configuration allows direct flame contact without needing to lift or reposition the wok. Its heat-resistant material resists warping even under prolonged high-heat use. Cleaning requires only wiping or light scrubbing after cooling. Designed specifically for stability and compatibility, it supports consistent stir-frying, searing, and other high-heat techniques without slipping or tilting.