The Magician brings out a solid screen containing a square hole, as well as a square block, which is dropped through the hole. The screen is placed into a case where the ends of the screen remain visible at all times. A magical pass is made and the screen is removed. But now the square hole is round!! The square block will no longer drop through, but through which a circular block will pass. The whole procedure can be reversed and redone over and over again, with no set up needed!!
This trick Comes with eveything you need to perform this trick. You will enjoy performing this trick over and over again!