World Centric® compostable clear hinged containers are made from PLA, a bio-based plastic made from plant sugars. Great for takeout restaurants, cafes and grocery stores, these takeout containers are lightweight and freezer safe. PLA products are suitable for cold to warm foods, and should be stored in a cool place below 110°F and out of direct sunlight. Freezer safe. Not microwavable. As a certified B Corporation, World Centric® 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® compostable foodservice products and make a difference today! Food Container Type: Hinged Clamshell; Material(s): PLA Compostable Plastic Derived from Plants; Material Type: Plastic; Interior Volume Capacity: 19 oz.