This box beautifully crafted in teak wood is used for a highly effective penetration of solid through solid.

Performer displays a small wooden box slotted on top and bottom through which a coin can pass.

A plastic square is placed inside the box. There seems to be no way possible for the coin to go through the box unless it penetrates the plastic! Yet the performer manages to do just that. Any object that can fit in the box can be used to block the path.

Comes complete with instructions and performance tips.