Martin MA540T Authentic Acoustic - LifeSpan 2.0 - Phosphor Bronze Light ( 12-54 )

TREATED FOR A LONG LIFE: These heavy-duty guitar strings are engineered using a new, patented anti-corrosion treatment which protects the core and wrap wire without compromising tone, tune, or feel. STRING SOUNDS: Designed to bring out a full and balanced tone from your guitar, these bronze acoustic guitar strings can be used for fingerpicking, pick playing, and other methods. Play with these strings for any genre-rock, bluegrass, country, folk, blues, and more. LIGHT ACOUSTIC STRINGS: Measuring from a 0.012" high E string to a 0.054" low E string, these are high-quality acoustic guitar strings that brighten the natural tuning of your guitar, including tenor, mid-tones, and bass. They feature a tension of 168.5. AUTHENTIC ACOUSTIC TREATED: With Martin Authentic Acoustic, you get a total set of strings designed for performance and playability. Martin guitars and accessories remain the choice for musicians around the world for their unrivaled quality, craftsmanship, and tone.