RUBIC INTELLIGENCE CUBE (PATIENCE CUBE) INTELLIGENCE CUBE KEYRING Rubik's intelligence cube, which consists of 27 mini cubes that left its mark on the history of puzzles and where you have to make each corner the same color, is now available as a keychain. You will be able to constantly test your intelligence without leaving Rubik's Cube Keyring with you! Product Features: Rubik Magic Cube keychains are 3 cm x 3 cm in size. The corners of Rubik's Cubes are blue, white, red, green, yellow and dark blue.;