Dr Bill's Impossible StopTrick is the sole property of Collectors' Workshop. A sealed envelope contains a prediction that matches a freely selected card chosen by a spectator.
Dr. Bill Nagler came up with a winner here. Dr. Bill's Impossible Stop Trick is just that.
A prediction is made (one single playing card is sealed in a pay envelope) and the spectator has a free choice of playing cards. Upon revealing his choice it is found that the performer has predicted his choice 100%. The method is quite clever. Cards are mixed and then dealt onto the table until the spectator calls 'STOP'. That card is seen to match the prediction.
Comes complete with detailed instructions and deck of Bicycle poker cards (blue backed only).