Rubik's Cube 4x4 Master Colour-Matching Puzzle, Travel-Friendly, Addictive Fun
S CUBE MASTER: The Rubik???. s Cube 4x4 (also known as the Rubik???. s Revenge or the Master Cube) is a 4x4x4 version of the classic Rubik???. The 4x4 Rubik???. s Cube is the bigger and bolder version of its 3x3 and 2x2 little brothers.