This set is part of the Frigoverre classic collection. The Frigoverre brand is leader of the Italian glass food storage market with over 30 years of history. The containers are ideal in the fridge, freezer and microwave without the lid. Freezer Safe (Min -20°C/-4°F). Features: Made of glass BPA-free plastic lid Set Includes: 1 round 4.7" container,15.25 oz.; 1 round 5.9" container,30.5 oz.; 1 round 7.1" container,53.75 oz.; 1 9" round container,104.75 oz. Odor and stain proof Can be used in refrigerator and freezer Microwave-safe without lid The different sizes make the containers suitable for any occasion of use, including take-away. Dishwasher Safe;Not Safe for Use in Oven