Vault Ball

The Vault Ball is a PokéBall type introduced in Pokémon GX.

It can store more than one Pokémon. It has a resemblance to the Omnitrix from the Ben 10 franchise due to having to switch back and forth to choose which Pokémon you want to use in this type of PokéBall. It has 20 slots so you can have 20 Pokémon in your team instead of 6 Pokémon.

Trivia

 * Both sides of the Vault Ball are silver and the V on the top side of the Vault Ball is electric green.
 * The center orb in the Vault Ball, when switching, shows silhouettes of the Pokémon you caught in it and it also shows the colors of there types behind the silhouettes as backgrounds.