his product is a 4 - piece collapsible silicone lunch box set in a rectangular shape.  Made of high - quality food - grade silicone, it is safe for food contact and features excellent heat and cold resistance, capable of withstanding temperatures from - 40℃ to 120℃.  The set includes four lunch boxes of different capacities, meeting various meal - portion needs.  Its rectangular design allows for easy stacking and space - saving storage.

The silicone material is soft and foldable, making it convenient to carry and store. When not in use, it can be folded to save space, and when expanded, it provides ample capacity to hold food. The lunch boxes are equipped with airtight lids that effectively preserve the freshness of food.

In addition, the product is microwave - safe, allowing users to heat food directly in the lunch box, providing great convenience. Its simple and elegant appearance, available in various colors, caters to the aesthetic preferences of different consumers. Whether for office workers, students, or outdoor picnics, this collapsible silicone lunch box set is an ideal choice to meet food - storage needs on the go.