Diansheng 4x4x4 Hexagonal Dipyramid Black 4x4 Shape Mod Twisty Puzzle Solve like a 4x4, because it is a 4x4x4 shape mod In order to solve it you have to change many of your perspective If you can solve a 4x4x4 this cube might be your new challenge Adjustable with screw and spring mechanism Need lube and need to be align when turn or it will pop