|Last appearance||"Enemies Mine"|
Stabilizer rings are useful devices that Providence used to restrain and, later, control EVOs. It initally prevented EVOs from using the full extend of their power by giving powerful shocks. Overtime, Providence modified the rings to brainwash EVOs and place them under mind control.
At Providence Basic Training, EVOs were collared to prevent them from using their power to its full potential. When Rex Salazar was next to enter the the Cage, Kenwyn Jones purposely deactivated the collars, thus allowing most of the EVOs to escape from their cells.
Providence's goals and philosophy changed after Black Knight became the administrator. The rings became essential when taming EVOs, causing them to obey every command of the handler. As demonstrated by Black Knight, the collars could also be deactivated remotely, causing the EVO to return to its previously raw nature. It would appear that some upgrades had been made to the collars, which allowed them to be fired from machine guns to collar unsuspecting EVOs from a distance. Several elite agents used them in the attack on Abysus, turning EVOs against their own kind.
- When Rex does his curing sessions on EVOs, Providence also places collars on them.
- When Rex deactivates a collar, it explodes.