The 1x2x7 Rubiks Cube. You will need a #4-40 screw 25mm (1") long and a nut to complete the puzzle.
*Note, one of the holes for the screw is shallower than the other. This is where you need to put the screw of the puzzle will not work.
7.52 w x
1.9 d x
2.961 w x
0.748 d x