Martin MA550 Authentic Acoustic - SP - Phosphor Bronze Medium( 13-56 )

BRIGHT TONES: Martin Authentic Acoustic Strings provide excellent tuning stability and playability with bright and rich tones. Discover your guitar's true voice with this professional-grade guitar string pack. SUPERIOR STRINGS: These strings are engineered to thrive during rigorous practice and performance schedules. These silk and steel folk strings feature our highest tensile-strength core wire paired with quality wrap wire for corrosion resistance and tuning stability. VERSATILE STRING SOUNDS: Designed to bring out a consistent and true tone from your guitar, these guitar strings can be used for fingerpicking, flat picking, and other methods. Use these strings in any genre-country, bluegrass, folk, blues, rock, and more. MEDIUM ACOUSTIC STRINGS: Measuring from a 0.013" high E string to a 0.056" 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 190.9. AUTHENTIC ACOUSTIC: With Martin Authentic Acoustic, you get a 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.