Martin Authentic Acoustic SP 13-56 Medium 80/20 Bronze Acoustic Guitar Strings Capo They feature a much heavier

They feature a much heavier gauge/core wire combination that will allows your guitar to go lower without losing tone

Gauge: 12-16-20-27-37-50

Gauge: 13-56 Medium Heavy

Code: DEN1046

with excellent clarity

Martin Authentic Acoustic SP 13-56 Medium 80/20 Bronze Acoustic Guitar Strings Capo They feature a much heavierMartin 6 String Authentic Acoustic SP Acoustic Guitar Strings Gauge: 13 56 (medium) Finish: 80 20 Bronze Guitar: Acoustic 6 String Gauges: . 013 . 017 . 026 . 035 . 045 . 056 Code: MA150 These strings are engineered with the performer in mind and they will always stand up to rigorous practice and performance schedules. We start with our highest tensile strength core wire, then tin plate it on all six strings for added corrosion resistance; because