Abstract: Six rectangular panels made of a rigid material form the sides of a hollow cube box. The panels are held together by means of a series of two grooves on each panel and by means of a removable key and without the use of any adhesive or other fastening devices. One panel incorporates a door for access into the interior of the box. The box may be of any size and may be used for any purpose including temporary building or building component, storage box, or as a surface for game boards and the storage of game pieces. The outside surface of each panel may be marked with the design of a game board and the box turned over to position the desired game on top for play.