LUNCH ? insulation: this thermal lunch box features multi layer temperature lock, ensuring your meals stay warm for up to 24 hoursquality materials: crafted with 316 stainless steel inner bowls, the seamles STAINLESS ? It includes four double layer food containers that keep rice, soup, and dishes separate without mixing versatile heating options: the stainless steel food containers can be placed in a steamer for heating, w STEEL ? The buckle opening ensures secure closure without accidental spills or lid openings during transportspecification:material: stainless steel, abs ABS size chart:16 crafted for long-term reliability LAYER ? 76inchpacka includes:1 stainless steel lunch box setnote:please allow slightly errors due to manual measurement and different monitors ensuring dependable everyday performance FOOD ? Designed based on product specifications to meet modern consumer expectations and daily functional requirements