Inomata 2-Tiers Picnic Lunch Bento Box 4 individual small bento boxes/containers in a Large carry container for the 4 individual boxes to fit in 1 large bento box with lots of space for your food This set comes with the green/yellow snap that helps hold the top layer of the bento lunch box together with the bottom layer The yellow piece can be used as a holder for easy carry The small bento boxes is great for dividing the space, but they can be removed, in case you like to use a large space for your food