Martin MA140 Authentic Acoustic Superior Performance 80/20 Bronze Guitar Strings - Light 12-54 jatoba-fingerboard HDMI: HDMI 1

HDMI: HDMI 1

Warranty: 1 year with free extension to 5 years following registration

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Neck Type: KIKO10p 5-piece maple/walnut neck with KTS™ TITANIUM rods

Martin MA140 Authentic Acoustic Superior Performance 80/20 Bronze Guitar Strings - Light 12-54 jatoba-fingerboard HDMI: HDMI 1Martin Authentic Acoustic Superior Performance SP strings feature higher tensile strength and tin plated core wire on all six strings that enable a fuller and more balanced tone, quicker response and increased tuning stability. Our impeccable standards for acoustic guitar tone are embedded in our string design and precision manufacturing process. That's why we make our own.