This a great little device for coin productions. The bag has a mesh front so you can see the inside at all times. Under the magicians control a coin instantly appears inside the bag. Magician displays an empty black can with white spots and two silks, one black and one white. The two silks are placed into the can and then removed.
Magician explains that the black silk changed to white and the white to black.
This is repeated and when the audience realizes the magician is pulling their leg he puts both silks back in the can and instantly the spots disappear from the can. Magician then removes the two silks and they are now covered with spots. Comes with everything you need. Example, take three silks and place them one at a time into an empty glass. Say the magic words and remove the silks which are now tied together.