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- Image Inducer - a gadget used to project the appearance (and scent) of aliens so Legion member's could do stealth missions among alien species.
- Inertron - The densest substance in the universe, and regularly used by the Legion as a shielding material. The walls of the Legion Clubhouse are composed of an inertron/manganium alloy, which can stand up to one of Superboy's punches.
Read more about this topic: List Of Legion Of Super-Heroes Items