These 12 ounce deli containers have flat lids, which are included. The bottom and lid are clear and are made from polylactic acid (PLA), which is made from agricultural crops such as corn and potatoes. They are fully biodegradable and compostable. There are no animal or petrochemical ingredients in the cups. For use with cold food. Case of 250 (3 inner packs). Eco Categories: Biodegradable, agriculturally based, less toxic, animal friendly, reuseable. Note: sale price limited to stock on hand.