The Round 3x3x2 is made with a high quality black plastic core. The object of this puzzle is to scramble up all of the colors and then return it back to its original starting position. As its name suggests, although this puzzle is 3x3 in nature from the circular face, it is only 2 layers deep. Also, the smooth round body of this puzzle makes it difficult to know which colors go where in relation to each other. These two things combined make solving this puzzle a unique challenge. The Round 3x3x2 is one of many great puzzles created by LanLan.