Popular with many home bakers, this baking sheet has a cushion of air between two layers of aluminum. The insulation protects against over-browned cookie bottoms and overdone pizza crusts, especially in ovens with hot spots. Get perfectly baked results every time you bake with this natural aluminum pan. Pan exterior measurement 14.2 x 16.1 x 1 inches and the baking surface is 13 x 16 inches Made in America of domestic and imported materials. Our aluminum bakeware-quality pieces are made to withstand a lifetime of use in your home kitchen.