World Centric庐 compostable clear lids for 9 to 24 oz cold cups are made from PLA, a bio-based plastic made from plant sugars. Great for cafes, delis and restaurants serving cold drinks. These to-go lids are durable and freezer safe. PLA products are suitable for cold to warm foods, and should be stored in a cool place below 110掳F and out of direct sunlight. As a certified B Corporation, World Centric庐 is dedicated to upholding the highest standards of social and environmental responsibility, transparency, and accountability. We proudly give 25% of our profits to grassroots organizations driving global change. Choose World Centric庐 compostable foodservice products and make a difference today! Flat Lid. Fits: 9 oz to 24 oz Cold Cups; Material Type: Plastic; Material(s): PLA Compostable Plastic Derived from Plants; Color(s): Clear.