Ernie Ball Earthwood Medium Bell Bronze Acoustic Guitar Strings, 13-56

Developed in collaboration with John Mayer, Ernie Ball Earthwood Bell Bronze strings have been carefully crafted to meet John's exacting standards, providing a new voice for your acoustic guitar. Inspired by alloys used traditionally for bells and cymbals, Ernie Ball's proprietary Bell Bronze acoustic guitar strings offer a richer, fuller sound than any other string in Ernie Ball's catalog. These strings will breathe new life into your guitar! 

Features:

• Gauges: .013, .017, .026, .034, .046, .056, Medium
• Created in collaboration with John Mayer
• Big, bold sound with natural feel
• New patent-pending acoustic guitar strings wound with a unique alloy inspired by bells and cymbals.