1,2, 3 Balls*

One Two Three Balls

This is a wonderful effect that can be used as an add on or natural progression after doing Stratosphere. It can also be a stand alone effect.

A cabinet is shown with three doors that can be shown empty. At that point a spectator is asked to freely select a ball. When the corresponding door is opened for that ball, everyone sees that a red arrow is pointing upwards at that ball showing that you knew which one they would pick.