Performer shows two flat (two dimensional) dice. One die has 3 spots on one side and 4 spots on the reverse. The other die has 2 spots on one side and 5 spots on the reverse.
Performer places both the dice under a cup. He removes the 5-2 die from under the cup and places it inside his pocket. In an instant the dice change places. He takes out the 4-3 die from his pocket, while the spectators remove the 5-2 die from under the cup. And the performer can hand over both the dice for examination.

A novel transposition effect for close-up use, and easy to do with the props and instructions supplied.