Imagine taking a large kitchen knife, showing it freely, baring your arm (or your assistant’s arm), resting the knife on your arm, then with a see-sawing action cutting right into the arm. YES THE KNIFE IS SEEN HALFWAY THROUGH YOUR ARM and not only that ... BLOOD BEGINS TO POUR FROM THE WOUND. There are no feke attachments to your arm, it is all self-contained in the knife itself and it is very easy to perform. If you do not want to use the blood effect, then this can be left out.