Houdini's Very Own SECRET DEVICE.
This cunning new device opens a completely different range of handcuffs in common use throughout the world. Houdini originally invented this top secret device which brought him fame and fortune. Now the David De-Val workshops have taken his idea and improved it, making it possible to open cuffs even faster! The "Secret Device" is now completely self contained and precision engineered to last a lifetime. For any performer wishing to make police challenges this new gimmick is a must.