Dan Harlan's Missing Think

NOTE:  This is used.  In good condition. 
It came from a magician's estate. 
Includes instructions.  

Instantly know the card in a spectator’s mind!
A spectator is given eight plastic cards with pictures of playing cards randomly distributed on them and asked to think of a card. The spectator keeps all the cards which show a picture of the mentally selected card and hands the others to you. You pay no attention to them and place them aside.

You then instantly name the card in the spectator's thoughts.

Includes silk screened cards, protective vinyl sleeve, and instructions.