Set of 5 Nesting Food Containers and Covers with Steam Vent- Dishwasher, Freezer and Microwave Safe Air tight food storage container has steam vents to let out hot air. Includes 5 containers in graduating sizes that nest inside each other for easy storage. Sizes include: 10 oz, 25 oz, 50 oz, 90 oz and 157 oz. Containers dishwasher safe, microwave safe, freezer safe and BPA free. Storage containers are the perfect way to keep food fresh, organized and easy to see. Seal in freshness with this food storage container set. Pack snacks, fruit, lunches and much more in these containers.