These are the pans the pros use. Made of natural aluminum for fast, even heat distribution and fabulous baking results. These durable, premium quality pans won't rust or warp and they're reinforced with encapsulated galvanized steel rims for strength. Crativity meets natural aluminum sustainability. Natural aluminum's superior heat conductivity ensures consistent, evenly browned results every time you bake Made to withstand years of baking: Will not rust These professional grade pans are the preferred choice for home kitchens and bakeries alike 6 diameters with straight-walled sides