Each display box is designed to be half the length of a single square in an Ikea cube unit. One paperback manga volume or DVD case sits on top with ease, but it is a bit too tall for a hardcover manga to sit on top. Each box can fit a funko pop box inside of it and is sturdy enough to hold 8 manga volumes. The joints all help hold each other in place, but if you find one is too lose, you can apply super glue to secure the boards. (the pins I have on display in the pic are by Bakaqeyama! check them out on instagram)

To assemble the box, each joint should be placed so that the shorter slots face the sides and not the front/back of the box.