The Marble Cube puzzle pieces have irregular shapes, which means there are far fewer possible solutions. Consequently, it is the most difficult puzzle in the Happy Cube Family collection. Individual packed with instruction sheets. Great for goodie bag ideas, parties & stocking stuffers.
Most difficult in Happy Cube line of Puzzles
Combine multiple puzzles for the ultimate 3D puzzle experience
High quality foam
Build the cube, then try to put the pieces back in the frame for a 2D puzzle experience
The Happy Cube Collection
Create 2D and 3D Puzzles with varying levels of difficultly!