Durable Baking Pan -13" 18" aluminum alloy baking pan, moderate weight, sturdy when holding hands, not easy to warp in the oven, durable and reusable High-quality Health Material - these baking pans are made of food-grade aluminum alloy, NSF certified, rust-proof, anti-distortion, durable, and can be used in ovens and refrigerators. Oven safe up to 500 Mirror Finish Design - these cookie sheets' surfaces are high mirrors polished to reduce the risk of food sticking together. Smooth curvy edges make it very comfortable to hold and protect your hands Easy to Clean - The deep edges around can accommodate food, avoid the flow of juice during baking, and keep the oven clean and tidy. Wash by hand only, as automatic dishwasher detergents can cause discoloration of baking sheets Perfect Bread Pan - 12-Pack 18" 13" oven pan. It is used for baking cakes, bread, biscuits, and other food. It is suitable for businesses or households.