This SOLO LD28CH-0090 polystyrene round dome lid fits onto a SOLO 28- to 32-oz. double-sided poly (DSP) paper cold cup (sold separately) to transport cold liquids and food. The domed top provides extra space for filling beyond the limitations of the cup, and the center hole enables access to the food or beverage with a straw or spoon (sold separately). The polystyrene material offers strength and resistance to shattering, and is clear for content visibility. Overall dimensions are 4.3 x 1.8 inches (diameter x height).Disposable food service products are used to store, insulate, transport, prepare, and serve food and drink. They may be made of paper, plastics, or metal foil. Food service products for freezing items protect their contents from freezer burn, contamination, and drying.SOLO manufactures disposable plastic, paper, foam, and post-consumer recycled content cups, plates, and other products for food and beverage service. The company, founded in 1936, is headquartered in Lake Forest, IL.