Superstar Very Puzzle Black Puzzle Cube Twisty Toy NEW (Edge Only Tuttminx) The Alexander's Star is like the edge only megaminx, Super Star corresponds to the edge only tuttminx Difficulty: Hard Size: 12cm (Diamater) = 4.7" In order to avoid potential catches, rotational layers are slightly concaved It is a face-turning puzzle based on the geometry of a truncated icosahedron