This SOLO TL38B2-0004 Traveler disposable black polystyrene dome lid is suitable for use with many SOLO hot cups (sold separately) with a 3.5" top diameter. This lid seals the hot cup for resistance to splashing and to slow the loss of heat from the cup's contents. It is made of polystyrene for rigidity and durability. This lid has a dome that provides space for foam and toppings, and a rim with an outer lip and inner ring that secures the lid to the cup for resistance to leaking. The drink spout on this lid is raised to provide space between the lid surface and the user's nose for comfort. This polystyrene dome lid has a 3.2" top diameter and is 0.7" tall.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.