This Choice brand lid is a perfect fit for 500ml cups in sizes 9, 12, 16, 20, and 24 oz. The round shape and clear strawless design make it a great choice for restaurant and food service establishments. Made from durable PET plastic, this lid is built to last and is ideal for single use. The item type is a lid only, and the unit quantity is a case of 1000. Whether you're using it for a party or just for everyday use, this Choice Clear Strawless / Sip Lid is a great addition to your collection.