Rubiks 4X4Think youre a Rubiks Master? If youve beaten the original 3 x 3 Rubiks Cube, its time to step up to the next level! This 4 x 4 puzzle is made up of 56 small cubes on the surface, but the centerpieces can move in relation to each other, making it even more difficult to solve. The new Rubiks Master is the smoothest Cube model yet. A slightly smaller version, designed to twist and turn with ease in your hand, youll be mastering this 4 x 4 faster than