The Box with Japanese Ancestral Wisdom shows an Impossible Penetration!
Guess how many people can open this amazing box? You will see how difficult it is to figure out the answer if you try with your hands. Wonder Block is assembled especially for coin magic with the Japanese traditional interlocking wooden building blocks method.
Wonder Block has a hole on the top with a small space inside. Small enough that you will not be able to put a quarter in the hole. Yet, a magician does it easily!
The Wonder Block is an impossible penetration! 

• Can be examined by spectators before and after performance.
• Use only one coin that can be signed by the spectator.
• Can put in or take out a coin within a few seconds under the cover.
• Can be presented as a puzzle.
• Made from a high quality wood and impressive in presentation.