Mental Dice Vision

This trick will make your audience believe that you have X-ray eyes! No preparation needed! You can even repeat the trick. 

A die is placed on the table, so that it can be examined. It is then placed into a cylinder and the number on top of the die is remembered. It is now placed into another cylinder, which is also closed. Although the magician hasn’t seen the number on top of the die, he is able to immediately tell the correct number.