A silk handkerchief is stuffed into the left fist, shown empty, and emerges on the other side in a different color. The hands are empty, and the handkerchief can be examined. This is the classic handkerchief dyeing technique.

Of course, you can put the dyed cloth back into your fist and it will return to its original color.

You will receive this plastic aid that has been improved several times over the decades.