rectangular tray pan is made of 100% Aluminium. Can Be Used In Microwave Ovens With Convection Mode and Normal Otg Ovens. For all of your baking and roasting needs use this size tray / pan. Great for cakes, pastries, rosgullas etc. This aluminium sheet pan is built to withstand the daily demands of your busy commercial kitchen. Easy to clean and maintain, this tray is made for both commercial and household use.