THE COMBO PACKAGE including 4 stackable containers: S (350ml) , M(500ml) ,L (800ml) and XL (1200ml). VALVE DESIGN - Hot gas can discharge and water vapor will not form in the lunch box. So not suitable for liquid ,such as water and soup which can leak from the valve. MATERIAL SAFETY - Containers are made from Food Grade PP Silicone: Non-toxic, Eco-friendly. Super smooth surface of the inside to avoid greasy and very easy to clean. Better Organization, Better Food Storage - Perfect for indoor food storage, outdoor activity, such as work, camping, hiking, travel and more. container is ideal for frequent use and easy storage when not in use, they will never be idle. Note: NOT oven safe, NO cutting, No flame; Freezer safe, Dishwasher safe Silicone Collapsible Lunch Box Sizeapprox XL: volume :1200ML /215*135*76mm/folded Height:33mm/259g L: volume:800ML /186.5*121.5*69mm/ folded Height:32mm/189g M: volume:500ML/164.5*108*64.5 mm/folded Height:27.5mm/142g S: volume:350ML/132*97.5*65.5 mm/folded Height:28.5mm/103g What separates us from the competition? 1.Bento lunch boxes are designed with fashion built for function! 2.The secure, easy click lid makes sure you never have to deal with spills or messes. 3.The simple design and sturdy structure makes them ideal for all your on-the-go food needs, such as school, work, camping, hiking, road-trips, travel, and more. 4.Easy stacking, easy storage means no more lost lids.Ensure your lids stay where you can find them quickly with the easy-find lid system that keeps lids and containers snapped together and ready-to-use. 5.Collapsible lunch box nest together to 1/3 the expanded size to save space when not in use. 6.Great heat or cold resistance, suitable and safe for microwave, refrigerator and dishwasher using. 7.They're a versatile container and a must-have accessory for anyone who takes their lunch or other meals to go! 8.Available in four different colors, the bento boxes are great for both kids and adults. If you have any question, you can contact our customer service,we will answer you and solve your problem as soon as possible. Color: green, red, yellow, blue Product Included: 4x Folding Bowls