Martin M500 12 String Phosphor Bronze Acoustic Guitar Strings Extra Light

Martin Phosphor Bronze Acoustic Guitar Strings are made from 92/8 composition alloy to give brilliance, clarity, and longevity of sound. The Phosphor Bronze winding is ideally suited for making strings that have deep, rich basses and clear, bright trebles. Gauges:
(1).010, .010 (2) .014, .014 (3) .023, .008 (4).030, .012 (5).039, .018 (6).047, .027