Mefferts Hollow Cube
This twisty puzzle solves just like the classic 3×3 cube puzzle but has been re-engineered so that you can see right through the puzzle and get an idea of how it works on the inside.
Mefferts Hollow Cube
This twisty puzzle solves just like the classic 3×3 cube puzzle but has been re-engineered so that you can see right through the puzzle and get an idea of how it works on the inside.