Features: Stackable and leakproof: The thermal stackable lunch containers are designed to be stackable, making them easy to store in your bag or the refrigerator. The containers also have a separate lid and a silicone ring to prevent leaks, so you can pack sauces and dressings without worry. Lightweight and Portable: The stainless steel bento lunch box is lightweight that anyone can carry them around easily. These boxes are easy to transport, allowing you to enjoy a delicious meal for outdoor activities. Specifications: Material: Lunch container: 304 stainless steel, PU foam layer, PP plastic Lunch bag: Oxford cloth, pearl cotton layer, aluminum foil Color: as shown in the pictures Capacity: totally 74 oz (4 lunch box) Small lunch box: about 15 oz/ 450 ml Large lunch box: about 22 oz/ 650 ml Package includes: 4 x Stainless steel bento box 1 x Lunch bag 1 x Spoon 1 x Fork Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays 7 in 1 Bento Box Set: you will receive 4 pieces of stainless steel lunch containers in 2 sizes (2 small and 2 large), an insulated bag, a spoon, and a fork, ideal set can meet you to pack a delicious, healthy meal for work, travel, picnic, camping and more Safe and Reliable Material: the portable Insulated lunch box is made of 304 stainless steel (inner layer), insulating PU foam layer (middle layer) and thickened PP plastic (outer layer); The solid stainless steel material is rust proof, safe and reliable, so you can pack food with confidence Separate Food Storage: the 4 insulated lunch box containers are independent and can be stacked into different combinations, this design is convenient for storing different foods at the same time; Each lunch box is equipped with a separate lid to keep original flavor of the food Keep Your Food Warm: the insulated bag is made of 3 layers of thick fabrics (high density Oxford cloth, pearl cotton layer, thick aluminum foil); The portable insulated lunch container set can usually keep food warm or cold for 3 hours, when applied together with the insulated lunch bag, it can keep food warm for a longer time 2 Sizes for Your Convenience: the stackable lunch box is available in 2 sizes, the small lunch box is about 15 oz/ 450 ml, the large lunch box is about 22 oz/ 650 ml, totally 74 oz; You can choose the proper size for your meal, and all the boxes fit neatly inside the included lunch bag