Advance Ring

are a recurring type of Series: in.

Location and Uses
The NaN Advance Rings are a class of NaN Magic Rings available exclusively from the Series:. When the OoS: from the OoS: in is appraised, it will become the OoS:. When the OoA: from the OoA: in is appraised, it will become the OoA:. The NaN Advance Rings can be transferred between games via a Series:, but neither performs any function when worn.

Trivia

 * While NaN Advance Rings can only be legitimately obtained in an or  game played on a Game Boy Advance or Game Boy Player, they can be transferred to one played on a Game Boy Color or Nintendo 3DS using a Series:.