A one-of-a-kind food container lid made from recycled polystyrene. The EcoLid 25 is an industry-first, recycled content solution that can help keep waste out of landfills. Performs just like traditional plastic. Used for keeping food hot and locking in freshness. This lid can be used with the Evolutions World™ containers that range from 12 ounces to 32 ounces in capacity. Food Container Type: Lid; Material(s): Polystyrene; Material Type: Plastic; Color(s): White.