A large bill is secured in the plastic frame and a padlock is snapped shut through the frame. Seven keys are shown to the spectators. It is demonstrated that only one of the keys will open the lock. The keys are mixed up in the bag. Six volunteers are given a free choice of key leaving one left for the magician. They are told that if their key opens the lock and release the bill it will be theirs to keep. Before each volunteer is asked to try his or her key, they are asked if they would like to trade it for the key you are holding. Each person in turn tries their key, unfortunately none of the keys work the lock. The only key left is for the magician, which happens to open the lock. The magician therefore retains the cash. This model has a side-sealed acrilic frame that doesn't allow the bill to fall out like in other models. INCLUDES: Frame maded of polished acrilic, padlock prepared and tested by Curty, 7 keys and instructions in portuguese, english, norwegian or spanish.