JK30SL Rotosound Jumbo King string set acoustic 12 phosphor brounze wound 9-46 JK30EL Rotosound Jumbo King string set acoustic 12 phosphor brounze wound 10-48 JK30L Rotosound Jumbo King string set acoustic 12 phosphor brounze wound 11-52 MA180 Martin Authentic Acoustic string set 12-string 80/20 bronze MA190 Martin Authentic Acoustic string set 12-string 80/20 bronze MA500 Martin Authentic Acoustic string set 12-string phosphor bronze MA180S Martin Authentic Acoustic Silked string set 12-string 80/20 bronze MA500S Martin Authentic Acoustic Silked string set 12-string phosphor bronze MA180T Martin Authentic Acoustic Lifespan 2 string set 12-string 80/20 bronze MA500T Martin Authentic Acoustic Lifespan 2 string set 12-string phosphor bronze MFX700 Martin Flexible Core Acoustic 12-string set 92/8 phosphor bronze M-190 Martin Traditional Series 12-string set 80/20 bronze M-1600 Martin Marquis Series 12-string set 80/20 bronze M-2600 Martin Marquis Series 12-string set 92/8 phosphor bronze MSP-3600 Martin SP Series 12-string set 80/20 bronze MSP-4600 Martin SP Series 12-string set 92/8 phosphor bronze MSP-7600 Martin SP Lifespan 12-string set 92/8 ph D500 Darco string set acoustic 12-string 80/20 bronze D200 Darco string set acoustic 12-string phosphor bronze AP-112-M Boston string set 12-string acoustic AP-112-L Boston string set 12-string acoustic A230XL Savarez Acoustic Bronze 12 string set 80 20 A230L Savarez Acoustic Bronze 12 string set 80 20 A240XL Savarez Acoustic Phosphore Bronze 12 string set A240L Savarez Acoustic Phosphore Bronze 12 string set