Description: Insulation design: Just add hot water to the lunch box, cover the plate and lid to keep the food warm.Sealing and leak-proof design: The inside of the lunch box has a silicone ring that fits tightly, and the outside is equipped with a buckle seal, which is more firm and does not leak water.Four-sided locking: The box cover is tightly locked on all four sides, and is firmly fastened to the bottom box groove to improve the sealing effect. Split card slot: The split card slot can be split, and the meals are packed separately, and it is delicious without odor.Ventilation valve port: Open the ventilation, press the seal to balance the air pressure inside and outside the lunch box, and open the ventilation valve before opening the lid.Application: It is very light and great for hiking, day trips, everyday life. Specifications: Product name: Lunch box Color: Beige, Pink, Green Material: Stainless steel Size: About 8.6 x 5.5 x 2.8 inch(L*W*H) Package Includes: 1Pc* Lunch box