Bento Box is a very elegant lacquer box with divisions for different cold foods. Different foods go in each compartment, (sushi, salad, cold chicken teriaki, pickles, etc) and then a cover with a handle is fastened on top to keep everything in place. The box is made of naturally insulating materials for a picnic on the slopes of mt. Fuji!
Thanks! I had never seen or heard of them! Sounds nice, though!