John Mayer has added to his growing list of signature gear with the release of a custom gauge Ernie Ball string set. Called Silver Slinky as a nod to his best-selling Silver Sky PRS, the esteemed bluesman has revealed the set has been in development for several years,

Ernie Ball has unveiled its latest signature electric guitar string set, and has been developed with and for the blues-pop superstar John Mayer that is a first for the brand, arriving in a custom gauge it describes as “unique’.

Over the past few years, Mayer has been using and refining his custom Silver Slinky set, which offers a unique in-between gauge and a custom core-to-wrap ratio