Martin MFX775 Acoustic Flexible Core SP, Custom Light
.011 .015 .023w .032 .042 .052 - Set / Acoustic Guitar
Martin SP Flexible Core strings pair Martin's thinnest SP core wire with a thicker wrap wire to give you the perfect combination of flexibility, comfort and volume. With Martin SP Flexible Core strings, you get total flexibility and total control. The unique design reduces finger fatigue and enhances string control.