From beginners to experienced pros, almost everyone uses this principle - either in the form of Svengali cards or Svengali pads or Svengali books. In fact, when a spectator chooses one envelope out of 50, she can freely handle the single envelope -- there is nothing apparently gimmicked about it.
Brand: Sven Lee
Colour: Green
Type: Magic Tricks Mentalism
UPC: Does not apply
Related SVENGALI ENVELOPES GREEN & INSTRUCTIONS BY SVEN LEE MAGIC TRICKS MENTALISM FORCE
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