In effect a solid plate penetrates the performer's or a spectators wrist. The apparatus supplied comprises of a frame and plate. The frame has folding legs at the bottom, which can swiveled to have the frame stand upright on the table, and swivel back to give you a pack flat prop. The frame is spring hinged at the bottom, and can be split in half by pulling apart the opposite edges at the top. This enables you to show the entire inside of the frame as empty.
You display the frame and plate, then place your, or a spectators arm through the hole in the plate, and push the plate down. It penetrates right through the arm. The frame is swiveled open to show the plate has indeed gone through the arm, and the frame is otherwise empty. The clever mechanical construction of this prop is a delight to use, and a very baffling mystery for the audience. And unlike other "chopper" effects, this has no blades or knives, making it an effect you can use for any audience, - even kids.