3x4x5 MF8 Black Cuboid TomZ Puzzle Cube Fully Functional Twisty Puzzle Toy 5x4x3 Difficulty: Hard, for advance cuboid solver Size: 3.54"x2.8"x2.1" Fully Functional Cuboid, shape shift Not for speed cube, can pop if the cube isn't aligned while you turn Stickers: White/Yellow, Orange/Red, Blue/Green