- Set of 4 Collapsible Food Storage Containers: Includes 2 square (350ml and 500ml) and 2 round containers (350ml and 500ml) to meet various food storage needs. - Made from Safe Silicone Material: Crafted from BPA-free, food-grade silicone that is soft, unbreakable, and non-toxic, ensuring the safety of your food. - Airtight Design for Freshness: Equipped with snap buckles and a vent valve to create an airtight seal, keeping dust out and preserving food freshness for longer. - Space-Saving Convenience: These containers collapse to save approximately 50% of storage space, making them easy to store when not in use. - Versatile Usage: Ideal for storing cereals, fruits, vegetables, and leftovers in the fridge. They also serve as lunch boxes for office workers and are perfect for outdoor activities like camping or traveling. - Safe for Microwave, Freezer, and Dishwasher: Temperature tolerance ranges from -4°F to 428°F (-20°C to 220°C). Important: Always pull up the air vent valve on the lid or remove the plug before heating. - Practical for Everyday Use: The combination of square and round shapes in two sizes allows for flexible meal prep and storage solutions, accommodating a wide range of food items. These collapsible food storage containers are designed to simplify your food storage experience while maximizing freshness and minimizing space usage.