Material: The food containers are made of food grade silicone, safe to use.
Portable: Ideal for food storage, easy to carry to the office, camping, hiking, picnics, etc.
Collapsible Lunch Box: The box can be folded completely to 1/3 of the original size when not in use, and 3 sizes of lunch boxes can be stacked together.
Easy to Use: When used in a microwave oven, the clip lock covers food safety and the air valve on the lid serves as a vent.
Oven, Microwave, Freezer Safe: The food containers are high temperature resisting, can be used in refrigerators, microwave ovens, dishwashers.