These 9" round foil take-out containers are made of 30 gauge aluminum and come with a foil laminated board lid. Use these foil pans for entrees like pasta dishes, casseroles, or stir-fries. These pans are also ideal for appetizers like cheese fries, dumplings, or hot wings. Safe for use in freezer, oven, and steam table. Their light and rigid construction makes these baking containers a perfect solution for carryout offerings. These stackable pans are a great space saving option, and you'll love the durability and versatility they offer!