Pitcher Octo-Star Calvins Puzzle Black 3x3x3 Twisty Toy Gift Octo Star Puzzle Cube This Octo-star was designed by David Pitcher It can be turn like a 3x3 with added shape shifting and bandaging Difficulty Level: Hard Not for speed cube, can pop with force, need to be lubicated for better turning Due to little triangle pieces, the puzzle need to be align to turn or else it will feel catchy