A dice and a brass container are handed out for examinaiton. As your back is turned a spectator places the dice into the container, remembers the number on top and covers it with the lid. You turn back around, concentrate, then write a number on a piece of paper. The lid is lifted revealing the number on the dice. It happens to match your prediction! You don't even need to touch the box to gain the information! Everything may be examined at the beginning and at the end of the routine.