from the Karakuri webpage: You can transform the cube into two shapes, 4 patterns. The mechanism is
unlocked, and you can always transform it freely. The space inside is small
and the craftsman doesn’t recommend you to put it for practical use. He
thinks that this work is a transformable object.
I'm selling these puzzles because I no longer have space to store or display them :(
buyer is responsible for money transfer fees (ie 3.5% for paypal), packing and shipping expenses...