Magnetic Card Case T-40 by Tenyo Magic Co
A card is placed into the case and the lid is closed. When the lid is opened, a totally different card is revealed. The case can be passed out for examination. Many other tricks in which (cards appear or disappear, torn and restored, Esp routines...) can be performed with this case. An astounding variety of effects can be generated whit just this single innocuous looking case. The various effects are easiest to follow if you read the basic instruction carefully.