Nordic Ware Naturals Extra Large, 21 x 15 inch Baking Set - USA Made Aluminum Commercial Quality Pan for Baking or Roasting, Encapsulated Galvanized Steel Rim Prevents Warping, 2pk Big SheetProduct Features Naturals commercial bakeware is made of pure aluminum foods bake and brown evenly due to aluminums superior heat conductivity. Reinforced encapsulated steel rim prevents warping and adds strength Extra large capacity pan holds more food than a standard sheet, allowing you to bake more in each batch. For sweet or savory baking; from cookies to sheet pan dinners, this is the pan youll reach for. Encapsulated galvanized steel rims stand