Super durable, lighter than cast iron and oh, that gorgeous unexpected slate blue. Ideal for sheet cake, cornbread and pull-apart rolls, our slate blue cake pan is part of our exclusive bakeware collection that takes its cue from professional kitchens. Made of carbon steel—an alloy of 99% iron and 1% carbon that's nearly indestructible—the rectangular cake pan heats quickly and maintains consistent temperatures for perfectly baked foods. A double layer of silicone-based non-stick coating ensures easy release and quick cleanup.