Erik's personal shield generator. (COMIC: Cindy, Cleo and the Magic Sketchbook)
A personal shield generator was a device that could shield someone from attacks.
Erik Ulfriksson acquired a personal shield generator from a stranger, and had it under his shirt when attempting to distract Ebonite. Ebonite tried to kill him, but the personal shield generator saved him. (COMIC: Cindy, Cleo and the Magic Sketchbook)