NON-STICK COATED LAYER SURFACE: The entire set is made from and engineered carbon steel metal alloy & it’s shielded w/ a non-stick coating that doesn’t crack and doesn't emit any weird odors or smells & it is also scratch-resistantEASY TO USE: Set of 2 muffin pans, each with 12 cups (24 cups total). This muffin pan will fit perfectly in your oven. To use it, you simply have to place the pan on a cookie sheet or simply place them directly on a regular cookie sheetRIMMED BORDER: This deep baking sheet features a fully rimmed border. This rim effectively prevents juices and sauces from spilling into your oven while providing ample airflow and heat distribution for even baking and cookingHEAVY-WEIGHT CARBON STEEL CONSTRUCTION: The bakeware reliably resists warping & heats evenly throughout, so there are no hot spots to worry about, which can burn baked goods. It also consistently delivers beautifully browned resultsCLEAN & WASH INSTRUCTIONS: This pan is dishwasher safe; meaning you don't have to spend a lot of time in the kitchen cleaning. For best results, hand wash in warm, soapy water before first & after each use. Rinse & dry thoroughly w/ a soft cloth