This is the 6x6x7 cuboid. The turning is very nice and the puzzle is quite stable.
This puzzle comes as a DIY kit. You will need to provide your own screws (M3) and springs for assembly. This puzzle comes with a free set of stickers. To claim your set of stickers, please send me an email after ordering with your shipping address.
If you do not want to assemble this puzzle yourself I can do the assembly for you at an additional fee. Please send me an email if you want to purchase an assembled and stickered puzzle.