On the magician's table, there is a bottle which is knotted with a silk on the top. There is also a tube which is the cover for the bottle and a cane. The magician unfastens the knot on the top of the bottle and then shows the tube completely empty to the audience and puts it on the bottle. At this very moment, the silk is in the magician's hand. Instantaneously, the magician makes the silk vanish with his cane. Afterwards, he removes the tube from the bottle, and every body is amazingly astonished when they see the knot has been fastened to its previous top of the bottle.
The cane is made of aluminum. The bottle is made of metal and the tube is plastic.
