Sponge Boxes

The magician has a crazy trick. He picks up a red box and says that this box contains a black box ... He opens the red box and it looks like a black box in it.
He takes the black box out and opened it. It is then a red ball.

But, says the magician, without this red ball matches the red box IN the black box and he does the red box now in the black box ...
And that's because there is a green ball in the red box and the magician opens both boxes and takes one green ball from the red box.
Then the magician continues trick by the black box again to do in the red box.

Finally, he opened the boxes again and now there suddenly appeared a yellow ball in the black box.

Nice trick that can be quite confusing by the magician. Incomprehensible, because they may still be able to understand how the boxes can into each other, but where do they come from sponge balls ...

Comes with 2 small boxes and 3 small sponge balls including Dutch manual.
Tenyo previously had a similar trick, called parabox. Below a video of the original Tenyo trick (** Note, the jumbo ball at the end of this short film there is NOT in !! **)