This is a foldable silicone food storage container from Standard Products. It has a capacity of 800ml. I've used it a few times, but it's too big for me, so I'm replacing it with a smaller size. I'm selling it now that I no longer need it. The lid is made of plastic, but the main body is made of silicone and is accordion-style, so it can be folded for space-saving storage when not in use. Please note that it is not completely airtight. I've used it about 5-6 times, but I hope you understand that it is a used item before purchasing. The following is an excerpt from the official website: Country of Origin: China Material: Body: Silicone rubber Cold resistance/Heat resistance: -30°C to 230°C Cover: Polypropylene Cold resistance/Heat resistance: -10°C to 100°C Product size: 18.5cm x 12cm x 7cm This foldable silicone food storage container can be used as a lunch box or for time-saving cooking. Dimensions when folded: ● Easily folds up when not in use, saving space. ● Can be used in the microwave. Fold by pressing from top to bottom. ● After use, wash with dish soap and dry. Avoid direct sunlight and high humidity. ● Silicone may have a peculiar odor, but it will gradually weaken. There is no problem with hygiene. ● When using for the first time, wash with dish soap, etc. ● Do not use a scrubbing brush or cleanser. ● Do not use in the freezer. ● This product is not a completely airtight container. ● Do not scratch with sharp objects. ● Do not place near fire or heat sources. ● Do not use for purposes other than its intended use. ● Microwave use precautions ● Check the microwave's instruction manual before use. Standard Products DAISO Silicone Silicone Silicone food storage container Silicone food storage container Silicone Tupperware