All of the keys look similar, but each key can only close a specific gate. Before the keys can be activated to force the gates to close, these have to be charged first with Celestial Spirit Magic and the spirits have to have lost their will to fight. Once the spirit has been defeated, the user must tap the key on the spirit, closing its gate and sending it back to the Celestial Spirit World.
- Fairy Tail Anime: Episode 207
- Fairy Tail Anime: Episode 208