These dome cup lids w/an opening for a straw fit the 14 ounce Taiwan clear cups and teh Fabrikal 16/24 ounce cups. The lids are clear and are made from polylactic acid (PLA), which is made from 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 beverages. Case of 1000 (20 packs of 50). Eco Categories: Biodegradable, agriculturally based, less toxic, animal friendly, reuseable. Note: These lids are discontinued because the fit on the cups are very tight and they are sometimes hard to get on the cups.