Raid Passes

A Raid Pass is an item that can be acquired by spinning the Photo Disc at a Gym. There are three types of Passes: Raid Passes, Premium Raid Passes, and Exclusive Raid Passes. They are required to participate in a Raid Battle.

Details
Trainers can receive one free Raid Pass per day by visiting a Gym, but can only hold one at a time. A Premium Raid Pass may also be purchased from the in-game Shop.

In-game description
A ticket that allows you to participate in Raid Boss Battles.

Trivia

 * Both a regular or premium Raid Pass will work for Legendary Raid Battles.