Take the 4X4 challenge! The Rubik's 4X4 Cube has many combinations, but only one solution. If you’ve beaten the 3x3 cube (sold separately), it’s time to step up to the next level! Scramble the coloured squares on this addictive and multi-dimensional cube. Then twist, turn, and rotate to match up the colours again on all sides! Once the puzzle's complete, it's sweet satisfaction!