The Super 3x3x9 I is made with a black plastic core. The object of this puzzle is to scramble all 6 sides and then put them back so that each face has a solid color. This puzzle is extra challenging because it has 3 layers in both length and width, but is 9 layers high. This difference in dimension will sometimes restrict the rotation ability making this puzzle just that much harder to solve. The Super 3x3x9 I is developed by WitEden who is a manufacturer and a wholesaler.