#5003 The Vintage Corning Ware Black Trefoil 2.5 Quart Casserole with Pyrex Lid is a two-piece set including a square-shaped casserole bowl and glass lid. Made of durable ceramic material, this black casserole dish has a 9-inch diameter and a height of 3.5 inches, perfect for baking and serving a variety of dishes. With its vintage charm and easy-to-clean features, this casserole is a timeless piece for any kitchen collection, originating from the United States by the trusted brand CorningWare.