Crystal clear lids make it easy to display the product in the container, making them an excellent choice for deli displays. A water-tight seal ensures easy food transportation without risk of leakage. Lids are easy to snap on and snap off. Designed to work with ClearPac food containers. One lid fits a variety of containers, helping to conserve storage space and speed on-the-go food services. Flat Lid. Food Container Type: Lid; Material(s): OPS - Oriented Polystyrene; Material Type: Plastic; Color(s): Clear.