World Centric Compostable Clear Lids Fit 16Oz-32Oz Fiber Bowls And Are Made From Pla, A Bio-Based Plastic Made From Plant Sugars. Great For Takeout At Restaurants, Cafes And Food Trucks, These Eco-Friendly Takeout Container Lids Are Freezer-Safe And Make Viewing The Food Easy For A Quick Selection. Pla Products Are Suitable For Cold To Warm Foods, And They Should Be Stored In A Cool Place (Below 110-Degrees Fahrenheit And Out Of Direct Sunlight). Lids Are Usda Certified Biobased, Nsf Industrial Certified Compostable And Uv Austria Ok Industrial Certified Compostable. As A Certified B Corporation, World Centric Is Dedicated To Upholding The Highest Standards Of Social And Environmental Responsibility, Transparency And Accountability. They Proudly Give 25-Percent Of Their Profits To Grassroots Organizations Driving Global Change. Choose World Centric Compostable Foodservice Products And Make A Difference Today.