Guitar String from Martin & Co belonging to the FX series
Martin announced a new addition to its FX Flexible Core line of acoustic strings - the MX130 Silk & Phosphor.
![[NAMM] New Martin Acoustic Strings](https://img.audiofanzine.com/img/product/normal/2/8/28391.jpg?fm=pjpg&w=334&h=243&fit=contain&s=6752896d858c45f31450770d190129d4)