Premium Material: Disposable foil pans with lids are made of sturdy and durable material,ideal for serving hot and cold dishes,these aluminum foil pans with lids are for baking,cooking and storage. (The foil lids are not suitable for ovens) Multiple Sizes: The aluminum containers with lids are a combination of three sizes,7.5" x 9.8" (10 pcs),5.5" x 7" (10 pcs) and 4.3" x 6.9" (10 pcs),covering a variety of uses,making them an indispensable aluminum pan and baking tray for every kitchen.