A quarter is shown to be locked in a small plastic "cage" held together with four screws. The audience can examine this and see there is no way to get the coin out of the cage easily without tools.

Yet, the performer is able to remove and insert the coin at will, as if by magic! The coin and cage can be examined throughout the routine...there is nothing to find because nothing is gimmicked! This can be presented like a "bounce/no bounce" ball routine in which the magician can insert and remove the coin repeatedly, but the spectator can never do it.

You could also start with the cage empty, borrow a quarter, and apparently put the coin inside as if by magic!

Coin Cage requires sleight of hand which is taught in the instructional video.