100% airtight and leakproof. The four-sided seal ensures the lunchbox is 100% airtight and leakproof (except for the compartments). Four interior compartments make it easy to carry and store various items. Keep food fresh longer. This lunchbox keeps food fresh longer. It also doesn't absorb odors, making it safe for storing foods like fish and cheese. Easy to open and close. The four-sided seal is sturdy and won't open on its own. However, it can be opened and closed easily and effortlessly with one hand. Even children or people with limited hand strength can easily use this lunchbox. Microwave, freezer, and dishwasher safe. This lunchbox is freezer safe (down to -20°C), microwave safe (up to 120°C with the lid open), and dishwasher safe (top rack). BPA-free. The lunchbox is made of polypropylene, a safe and healthy BPA-free material. Simple and practical: This lunch box has four compartments for easily storing various foods. Perfect to take with you to work, the beach, in nature, or for a picnic. Convenient: This practical and airtight lunch box offers plenty of space. Smooth edges: The compartments of this lunch box are clearly organized and look great. Product packaging information: Package dimensions: 21.5 x 16.2 x 5.5 cm; Material: PP (food-safe); Quantity: 4 pieces