Description : Vacuum Seal Stacking Insulated Lunch Box Stainless Steel Thermal Insulation Bento Box Dual Handle Container - The box Can be removed to clean- Before opening the lid, please open the vent above it- Pressure cooker principle, hold down the vent can be sealed- It can keep food hot for 1.5 hours (depending on the environment & food temperature)- The second layer can not be used to hold liquids (it will leak) Specification : Color Green / Orange / Blue Material Stainless Steel + Plastics Capacity 1 Layer: Appr.0.9L 2 layer: Appr.1.8 L Size Refer To The Picture Package Include : 1 x Lunch Box