Our top-rated Naturals®Bakeware collection is made of pure aluminum for superior heat conductivity and produces consistent evenly browned baked goods every time. These premium pans have a lifetime durability and will never rust. Encapsulated galvanized steel rims prevent warping. Creativity meets natural aluminum sustainability. Features: Oven Safe Shape: Rectangle Base Material: 100% Aluminum Bakeware Size: 11" Care: Hand Wash Material: Aluminum Country of Origin: Made in US