Fat Daddio's sheet cake pans are made of 14-gauge, 3003 anodized aluminum and come in 25 different sizes. These pans are durable for commercial use. Each pan features a 1/2" lip for easy handling, straight sides and tight corners. The anodized aluminum prevents metal from leaching into food. For 43 years, Fat Daddio's has been a manufacturer of quality bakeware for professional bakers, pastry chefs and artisans. Fat Daddio's offers hundreds of products, from anodized aluminum pans, to candy molds, silicone mats and pastry tools.