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 Measurements: 12.88 Width/Inches, 17.88 Height/Inches, 1.06 Depth/Inches Base Material: 100% Aluminum Care: Hand Wash Material: Aluminum Country of Origin: Made in US