Round 7″ Dome Clear Plastic Lid 500/Case (P270-500).Durable Packaging International. This plastic round dome clear lid is for 7 inch round foil containers. Diameter: 7″.Material: Aluminum. Durable Packaging International specializes in manufacturing food service packaging products. They make everything you might require for your commercial food service business from aluminum foil baking pans and trays to carry out containers and steam table pans.