Martin MSP4100 PK3 Acoustic Guitar Strings 12/54 PH/BR 3 Pack

If you can gig night after night, your strings should be able to keep up. Martin SP strings are designed with the performer in mind. Made with high tensile strength core wire and finished with our highest quality wrap wire, our SP line of strings stands up to rigorous practice and performance schedules to deliver consistent true tone that you can count on song after song. Martin SP Phosphor Bronze acoustic guitar strings are made with the highest quality bronzed steel core wire and phosphor bronze wrap wire.