Outside: 13 in. x 9.625 in. x 1.375 in./33.02 cm x 24.44 cm x 3.45 cm. Natural Commercial Bakeware: Made of pure aluminum, which will never rust, for lifetime durability. Baked goods rise and bake evenly due to aluminum's superior heat conductivity. Reinforced with an encapsulated steel rim to prevent warping. We practice green manufacturing. Nordic Ware is a family-owned company, founded in 1946. We are perhaps best known for the creation of the Bundt pan, which can be found in millions of homes. We still manufacture our cookware and bakeware products in Minneapolis, Minnesota, as we have for over 65 years. Our dedicated employees, creative designs and cutting edge technology ensure this product will remain in your family for generations. Nordic Ware limited lifetime warranty. Made in the USA following sustainable environmental and safety standards. Made in the USA.