Security Lock (2015) by Tenyo Magic

A spectator inserts a credit card into a case by himself. The instant the magician makes a magic wave over the case, the spectator is now unable to remove the card! When the magician takes back the case, he is able to slide out the card with no difficulty. This is the latest release from genius creator Lubor Fiedler! The props look and feel absolutely ungimmicked, yet allow you to perform this engaging and baffling magic effect with ease.