Fat Daddio's 3 Inch x 3 Inch x 2 Inch Square Cake Pan FITS PERFECTLY IN 3, 6, and 8-QT PRESSURE COOKERS ANODIZED ALUMINUM - Its the ideal baking surface. Our Safe-Seal anodizing process creates a safer, stronger baking pan. A durable, non-reactive finish that bakes a wider variety of recipes, including citrus-based and savory recipes. NO EXTRA METALS OR CHEMICAL COATINGS - Anodizing is not a coating. It is an environmentally-friendly process that contains no chemical additives, dyes, PTFEs, or PFOAs. Nothing that can transfer, peel, flake, or rust into your baking. HEATS AND COOLS QUICKER  By reflecting heat, rather than absorbing heat, ProSeries cake pans reach baking temperatures faster. Even heating allows for the best possible rise. Once out of the oven they cool quicker preventing over-baking. BUILT BAKERY TOUGH - These are the same pans bakeries, commercial kitchens, and baking enthusiasts around the world depend on every day for professional results. Lifetime warranty.