Available from http://www.world-of-magic.co.uk
The magician displays a metal tube explaining that it was the chain cover from the handcuffs Houdini wore while performing his famous Chinese Water Torture Cell escape--for the last time.
Now his ghost is trapped inside the tube. Put a pair of ropes through the tube and then tie the tube into a spectators hand.
With a pull the tube escapes from the ropes
