It's not complete puzzle, it's only an addon for Rubik's Tower. You need to glue these pieces on cuboid 2x2x4 with dimensions 44x44x88 mm, paint them at your taste and enjoy. ;)
Connecting locks on this puzzle are suitable to other puzzles in this series.
More photos and info here http://twistypuzzles.com/forum/viewtopic.php?f=9&t=27041