The Zeonizers harnessed the power of the legendary Zeo Crystal to transform seven heroes into the Power Rangers Zeo. The Zeonizers materialized on the wrists of the user, and activated by drawing power from the Zeo Crystal. The Zeonizers are also the very first wrist-mounted Morphers. Other such Morphers would be utilized from here on in following seasons. These devices were the first wrist-worn morphers and utilized the Zeo sub-crystals in a similar manner to the Power Coins.