This 500ml lunch box has a lid with cooling gel sealed inside. Made in Japan; a rubber band is included.
Features
The lid and cooling pack are combined in one piece, which can be frozen in the freezer.
The product description states that food packed at 8 a.m. can be kept at 15°C four hours later.
The body and divider are microwave- and dishwasher-safe; the lid is not.
How to Use
Freeze the lid overnight in a standard freezer. After filling the lunch box, fit the frozen lid. Remove the lid before heating the food in a microwave.