DURABLE ALUMINUM FOIL PANS - Sturdy pans, great to store a variety of foods; compatible for baking, reheating in the oven, cooling in the fridge or freezing for long storage. SEAL FRESH AND PREVENT WASTE - Trays come with Cardboard lids to enable a tight seal for longer preservation of stored items. MADE OF ECO-FRIENDLY RECYCLABLE ALUMINIUM. NO CLEAN UP! - Just throw away once finished CONVENIENT AND AFFORDABLE - Perfect for a picnic, storing leftovers or giving as takeout boxes (and never worry about getting a dish back!).