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. Included: 1 12-Cup Muffin Pan(s) Features: Oven Safe Shape: Rectangle Measurements: 9.5 Width/Inches, 12.9 Depth/Inches, 1.25 Height/Inches Maximum Temp (f): 450 Degrees F Care: Hand Wash Material: Aluminum Country of Origin: Made in US