About This High-Class Material: Made of sturdy 304 stainless steel and thickened food-grade PP, BPA-free, lead-free, smooth surface easy to clean and maintain, reusable Leak-proof Stainless Steel Lunch Box: No need to worry about messy lunch and leaks when you go out. It can be easily put into the bag and carried around, which is very suitable for preparing ingredients/packing fresh food to go to work, school, travel, picnic, beach, park and other occasions. (The lid is leakproof, but the compartment is not) Flexible Custom Divider: Adjustable/Detachable silicone divider allows you to more flexibly control the size of the compartments according to food portion, which is very suitable for combining sandwiches, pasta, salads, vegetables, fruits, snack and other foods for nutritional matching and portion control. The small container can be used as a snack/sauce/fruit container as an extra supplement Convenience And Microwaveable: Made of stainless steel with special smooth arc and no welding points, it can be heated in the microwave (Take off the lid: microwave mode power