D'Addario EJ37 Phosphor Bronze Acoustic 12-Strings - Medium Top Heavy Bottom

D'AddarioEJ37 12-String Phosphor Bronze Acoustic Guitar Strings - Medium Top Heavy Bottom Phosphor Bronze acoustic guitar strings are acclaimed worldwide for their great, long-lasting tone. Phosphor Bronze was introduced to guitar string making by D'Addario in 1974 and has become synonymous with warm acoustic tone. Gauge: 12-12-16-16-25-10-32-15-42-22-54-30