Ziploc is perfect for food storage. Brand new, unused. I'm selling only 9 of them because I can't use them all. The largest 1900ml size is not included. Both the container and lid are heat resistant up to 140°C and cold resistant to -20°C, allowing for freezing food and heating it in the microwave with the lid on (please use with the lid slightly ajar). - Brand: Ziploc - Material: Plastic - Use: Food storage Thank you for looking.