Fat Daddio's Sheet Cake Pans are anodized for safety and performance.Seamless, 14-gauge 'square-bake' design with no extra metals, welds, or chemical coatings.Safe for citrus based fruits, sauces, and foods.Non-reactive anodized finish will not rust, peel, chip, or flake.Fat Daddio's sheet pans heat faster and cool quicker allowing your recipes to turn out the way they should.Easy release and clean up.Straight sides and square corners for decorating and stacking.