Remove two red dice, two metal rings and a steel ball from a small box. Close the empty box and hand it to the spectator.You stack the two small rings to form one large tube. A steel ball is placed on one of the dice then covered with the tube.The second die is now put into the tube on top of the ball.
When the tube is removed the ball is gone. Even close examination of the props doesn't bring the little ball back.
The ball then reappears inside the box held by the spectator!