This is a 4x4x4 puzzle "cube" where you are not trying to arrange colors, instead, you arrange its faces by sizes or thicknes. Also, it is cylindrical, which brings new challenges to the puzzle, like center orientation. No one else had made this puzzle yet, combining the 4x4x4 Cube, the Mirror Cube, and the Barrel Cube. Fabricated from the start as a 4x4x4 Bump Cylinder.
Assembling this cube can be very difficult. Unless you are used to disasembling and reasembling cubes, I recomentd you contact me so I can order it, assemble it, add stickers, lubricate it, etc. and send it to you. I would charge you a bit for doing it, and for the extra shipping costs.