Classical 3-in-1 Bento Box: 2-layer stackable bento boxes with 4 compartments, including 1x740ml large container (Built-in a removable baffle) and 2 x330ml smaller containers. Easy to store different types of food, compact snack box for traveling and outdoor. 2 Separate Snack Lunch Containers:The top layer of bento box features 2 separate snack box containers (instead of a removable divider), which not only separates different food items, but also prevents the food from stringing together when it is being moved, and better preserves the original flavor of the food. About Leak-proof: Each container of this heavy duty bento lunch box has a divider, which has a good seal. It is recommended to open the ventilation valve before removing the divider to reduce the air pressure difference between the inside and outside of the container, making it easier to open! (Tip: bento boxes are better for storing dry and slightly soupy foods). Microwave and Dishwasher Safe: The bento box meal prep containers is dishwasher and microwave safe. Microwave safe range (248F for 3 minutes or less) Dishwasher safe: Dishwasher top rack only, hand wash lid recommended.