The Bake Shop Masterclass White Heart Shaped Covered Casserole Mini-Cocotte is a stoneware baking dish with a heart shape. It has a ceramic surface coating and can withstand up to 425° heat resistance. The dish is 4 inches in width and 2 inches in depth, and comes with a lid. It is dishwasher safe and microwaveable. The brand is Master Class and it is a mini heart casserole.