The Ernie Ball Medium Light Earthwood Bell Bronze Acoustic 12-54 strings are premium acoustic guitar strings made in collaboration with John Mayer. They feature a unique bell bronze alloy, designed to deliver resonance and a bold, full-bodied tone that invigorates your guitar’s sound.

• Distinctive bell bronze alloy for bright and sustained acoustic tone
• Medium light 12-54 gauge suits versatile playing styles
• Crafted to enhance projection and clarity on stage or in the studio
• Inspired by the tonal qualities of bells and cymbals for a brilliant finish