It is a Rubik cube of 3x3x3 cubes, and each face of 3x3 squares is a Sudoku itself. The aim of the game is to rearrange a scrambled cube so that each face shows digits 1 to 9.
Gadget shop Brando sells the cube for only $10.90 online.
This game is supposed to be good training for the right brain (Spatial Reasoning and Mental Imagery) and the left brain (nonverbal logic).
The 3D Sudoku Cube measures 70x70x70mm.