On the magician's table, is a cube and on that box a cage is seen.
The size of the cage is exactly the same size as the box. The magician puts two doves inside the cage from the door at the top and then puts the cage inside the box. He then picks up the cage and holds the two sides of it and turns it several times.
He returns the box to the table again and opens the door of it. All of a sudden, the audience see that the dove cage has been changed into two rabbits or anything you would like that fits in the load chamber ... . At last,the magician shows the cage quite empty to the audience.