The collectable item of Kaizoku Sentai Gokaiger, used in tandem with the Mobilates, or Gokai Cellular in Gokai Silver's case. Alongside allowing to transform as the Gokaigers, they can transform into any past (or even post-series) Sentai Ranger as long as they have their respective key. They resemble a little figure of a given Sentai Ranger, whose legs flip up to reveal a key, which is then inserted into their transformation device of choice.
