I designed this container for my son's card game. Containers from other creators were no good because this game in the instructions has a board to play on. I then modeled in fusion a suitable box to contain the folded board, I designed the support for the cards to place on top and finally the lid. I put some small magnets to hold the lid for fear that it might open in the backpack, but perhaps they weren't necessary in the end. My son very happy with the result!