Turn out tender, perfectly baked muffins and cupcakes with this professional-weight muffin pan. Made in the USA from aluminum-coated steel, it distributes heat evenly for consistent results. Twelve wells are sized for standard muffins and cupcakes. Commercial-grade aluminized steel distributes heat quickly and evenly for consistent baking results. Won't corrode or rust, even with heavy use. Extended edges provide a secure grip, making it easy to transfer the pan to and from the oven. Made exclusively for Williams-Sonoma in the USA.