This is a bizarre and visual gag, look in the mirror and be amazed when you unscrew a part of your finger!
You put on a pair of gloves and take the tip of a finger (for example your index finger) and unscrew it from the rest of your hand and take it away completely! Yes, you read that right! Then you screw the tip back into place, wave over the cut and the finger seems to have recovered. Take off your gloves and your temporary amputation will no longer be visible.
Did I already mention that you can hand over the gloves for examination and that you can use any pair of (flexible) gloves?
You will receive a pair of gloves, the special mystery gimmick(s), and an instructional DVD.