This Product was produced and designed by Tora Magic Company.
First, you show a Black and White Die to audience and put it in a box.
Then, get the Black and White Die out of the box but it has changed into a Red and White Die!
Now, put the Red and White Die inside the box. This time it changes into a Multi-Color Die!!
At this moment, you show the Multi-Color Die to the audience to show it is solid.