Portmeirion Sophie Conran Cast Aluminum Ceramic Coated Cookware Black Shallow Casserole with Glass Lid, 12.0 Inch Casserole with glass lid is 12.0" in diameter Ceramic coated cast aluminum body with heavy gauge base for quick and even heating Stainless steel disc makes this cookware suitable for induction, gas or electric cooktops Innovative ceramic non-stick coating has hard and scratch resistant surface and is free of plastics, PTFE and PFOA Dishwasher Safe; Oven Safe to 390 Degrees Fahrenheit; Perfect for Oven to Table Use