Boxes and bricks that make it easy to play, every day.Play and storage in one. On the lids you can build or display your creations, and in the boxes you can put your bricks when you want to take a break, play on trips or bring them to a friend. You attach 3 boxes with lids together to build big. Maybe a three-story house or a slide? Helps you sort and keep big and small things organized since the boxes come in different sizes.