This optio cover fits snugly is made of 21 gauge 18/0 stainless steel to reduce the risk of pitting and discoloration that can ruin the effectiveness of the pan. Ideal for frying, sautéing or searing. The addition of a cover may be called for by a recipe or just needed to retain moisture and achieve more energy efficient cooking. Includes spot-welded handles, these covers were built to last. The domed cover ensures that the contents of the pan do not lose moisture while cooking. Measures 12.5-inch top diameter, 10-7/8-inch bottom diameter by 2-1/4-inch height. It is NSF certified.