Ultra Ball

The is an advanced and essential trainer tool used to capture Pokémon in Pokmon GO. , being an upgrade from the more standard Pok Ball and Great Ball, has a higher catch-rate compared to other balls. The has the highest catch rate of all Pok Balls currently obtainable in the game. This type of ball can be obtained through various sources in-game once the trainer reaches the necessary level.

Usage
s are used to capture wild Pokmon. When encountering a catchable Pokmon, this ball, along with the other types of balls, can be thrown. The will rotate four times before a successful capture, where the Pokmon will break out before four successful movements if unsuccessful. See Catching for more information on how to capture a Pokmon.

Obtaining
is available in Pokmon GO. Below are methods on how to obtain s.
 * Pokstops/Gyms
 * s can be commonly obtained by spinning the Photodisks on Pokstops or Gyms.
 * Raid Battle Rewards
 * Research Tasks
 * Gifts
 * can occasionally be given to players by friends in the form of Gifts.