The Most Versatile Device of Its Kind Anywhere...The hottest utility item in decades! You get a business card case that looks completely normal but allows invisible access from the outside to the inside. It can be handled completely normally and casually and will not reveal its workings. It is very low tech, so nothing can go wrong. The access is built into the design of the case and allows for literally hundreds of effects and applications. You can perform nail (or boon) writing, pocket writing...