Its straightforward as per the photo! The magician sits his briefcase down on a table, opens the briefcase, and removes a real bowling ball! The audience figuring there must be a hole in the back of the case is astonished when the magician then closes the briefcase and revolves it around to show that it is too thin to every have contained a bowling ball! Briefcase only, no bowling ball included. Get that old ball out of your closet and you have a miracle! 861RUM ULTBOWLINGBALL