This is a set of 6 Muji airtight food storage containers with valves that can be used in the microwave with the lid on. They have been stored unused. Please check the condition in the photos. #StorageContainerCore Large Deep x 1 Large Shallow x 1 Medium Shallow x 1 Small Deep x 1 Small Shallow x 2 They are transparent, so you can easily see the contents, and they have a high sealing function. Since they are not glass, they are also suitable for lunch or picnics. You can put food you want to heat directly into the microwave. What do you think? A set of transparent plastic food storage containers with airtight lids, available in various sizes. Thank you for looking.