This product was constructed out of heavy duty aluminum for durability and features rolled edges. The heavy duty aluminum construction helps to eliminate buckling and warping in the oven. These wide and shallow pans are perfect for baking cookies, breads, rolls and more. It is ideal for use at the restaurant, catering, pizza parlor, buffet, home and other. The pans can be used in either a commercial or residential size oven. The pan is easy to clean and maintain.