Great Ball

The is one of the most basic and essential trainer tool used to capture Pokémon in Pokmon GO. , being an upgrade from the more standard Pok all, has a higher catch-rate compared to the Poké Ball. The has a lower catch rate compared to the Ultra Ball. This type of ball can commonly be obtained through various sources in-game once the trainer unlocks it.

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 commonly 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