Premium Material: 2 in 1 Bento Box is Made of PP, this set of food containers is designed with divided compartments. Leakproof: Meal Prep Container has Single tableware storage, more convenient to eat, sides lock buckles ensure Leakproof, Top Lids with handle. Thermal:Japanese Leakproof Lunch Box Inject hot water to warm up, double layer hollow design, can keep warm at room temperature,heated by oven. Multifunctional: Our Divided Food Meal Storage Containers Enough to take lunch, snacks, fruits, etc. All kinds of food can be used in this lunch box. Application: Bento Box is Suitable for adults and kids use, perfect for picnic, home, office, camping, exercise etc. Size Chart: 2 Tiers:18.8cmx10.7cmx13.5cm/7.40inchx4.21inchx5.31inch(1800ml) 3 Tiers:18.8cmx10.7cmx20.2cm/7.40inchx4.21inchx7.95inch(2500ml) Package Includes: 1 lunch box Note: Please allow slightly errors due to manual measurement and different monitors.