The World’s Most Famous Puzzle, Rubik’s Cube, is celebrating its 40th Anniversary with a special “metallic” 3x3 Cube. Featuring reflective, vibrant, foil colors on all six sides, Rubik’s Metallic is a dazzling and fully-functional Rubik’s 3x3 Cube. Rubik’s Metallic 40th Anniversary Cube is a truly special cube for Rubik’s fans of all ages! For ages 8 and up. WARNING: CHOKING HAZARD - Small Parts. Not for children under 3yrs.