This is the miniature version of the domino puzzle (2x3x3). The big version is mass produced already. This version is called madness, because you can turn the side 90° and turn the top and bttom layers. This provokes jumbling and shapeshifting.
This puzzle was originally made by chino from the twistypuzzles forum, thanks to him for authorization =)
10.736 w x
2.646 d x
4.227 w x
1.042 d x