Features: 1. Food Grade Material: The lunch containers are made of food-grade 304 stainless steel, not easy to rust, no odor retention, so you can use it without any worries. 2. Keep Food Warm: The stainless steel bottom keeps the heat preservation longer, before use, it is recommended to wet the inside and outside of the food box with hot water to preheat. After the food is cooked, it is recommended to put it into the box immediately, and then put it into the insulated bag. 3. Applicable: Convenient for you to enjoy tasty homemade food at school or at work or going out. Great to store soups, fried rice, pasta, or other hot food; can also be used to store cold food such as salads, fruits, and more. 4. Leak-proof & Convenient Design: Each lunch container comes with a double silicone seal to lock in freshness, leaks and odors. There is a clamshell exhaust valve on the top of the lid, the hot air can be exhausted at any time, which makes it easier to open the lunch container; there is a handle on the top of the lid, which is convenient to carry and move, and can be reset after use. 5. Fit For Occasions: The stainless steel Insulated lunch containers set adopts a Stackable design, which can be freely combined and stored separately, preserving the original flavor of the food and making life more pleasant and refined, great for kids going to school, adults working, exercising, camping and traveling. Specification: Material:Stainless Steel Product Color: Beiges, Navy Blue, Brown Product Size: S: 11.5 x 6.5cm, L: 11.5 x 9cm Capacity: S: 450ml, L; 650ml Product Weight: 900g Package Included: 2 x Small Lunch Containers 2 x Large Lunch Containers 1 x Insulation Bag 1 Set x Tableware