Stainless steel portable lunch box

specification:
Stainless steel, durable and easy to clean.
Multi-layer design, suitable for school, office or outdoor.
It is easy to carry and keep warm, and the food won't get cold quickly.

Type: lunch box
Material: Stainless steel
Capacity: single layer: 900ml, double layer: 1800ml, three layer: 2700ml (optional)
Function: Multi-layer, easy to clean, thermally conductive, portable

Number of boxes: single layer, double layer, three layers,
Color: blue orange green