The former world's smallest fully functional Rubik's Cube at only 6mm to an edge! The actual world's smallest is now 5.7mm, made by grigr. This puzzle will not come as it appears in the pictures. It will come in regular frosted ultra detail. For my puzzle, I assembled it, then coloured it black with a permanent marker. After that, I cut out tiny stickers for it and applied them. Also, this will come with enough pieces for two cubes, just in case anything breaks, or gets lost. Be very careful with this puzzle because the parts (especially the core) can break. Don't force any turns. Additionally, due to the tiny size, sometimes the core will print frozen together, and not be able move. Finally, it is very hard to assemble.
This is no longer for sale because the design restrictions for Frosted Ultra Detail have changed, and it is too small to print (Minimum bounding box x + y + z >= 12mm).