The lunchbox tin of a metal - covered by seven kinds of enamelling has two compartments, each with an independent double-layer heat insulation object lining. This technology boasts a cushioned conduction layer that will absorb the hot air within minutes. The main body of the lunch box consists of a steel-clad shell that provides unparalleled rigidity. After 20 separating layers, layered resistance to heat means that your food, moved from the heat insulated area to the metal wall and back again-ensures both that it keeps warm (if hot) or cools down quickly (if cold). A size which is welcoming to those taking life on the go, with small and delicate external dimensions as well as space for one or two cake pieces inside. The lunch box is widely used in daily life- carrying lunch to work, eating with the kids at school and even serving as a basket for picnics. It's compact design makes it practical for travelers or those on vacation.