The Gourmet Standard 9-inch Tri-Ply Round Cake Pan features an aluminum core with layers of stainless steel surrounding it. The Tri-Ply construction creates even baking time after time. This cake pan has a lifetime warranty backed by Gourmet Standard. For almost a decade, Gourmet Standard has been creating innovative kitchen essentials in stainless steel and aluminum cookware, bakeware, accessories, and more. Its specialty cookware product lines impress both customers and the food industry with their usability, durability, and style.