Sterling Coins provide great value for their price. Effect: This is the most used coin set by amateurs and professionals alike! Two coins are shown, a copper coin and silver coin. Both coins are placed in the hands of your spectator. Then the spectator closes their hands around the coins—when they open their hands, the once copper coin changes into a real Quarter, baffling the spectator beyond belief! If you’re looking for an affordable optino this is it.