Pack includes three sets of your favorite Martin strings and a pick card with four picks - an amazing value! Martin MSP4000 Studio & Stage Performance Guitar Strings are made by the ultimate guitar craftspeople at Martin and are ideal for live, studio, stage, or anywhere you need maximum string life. The Martin SP Strings are the result of research with steel producers and contain an industry-leading high-quality steel core that resists breaking better than your average strings. The core and strings are plated with a smooth acoustic bronze finish. This ensures your Martin SP guitar strings stay bright and have long-lasting tone. They also look absolutely beautiful on the guitar! Martin understands the expectations of demanding musicians and they rise to the challenge with these superior guitar strings. Medium, Gauge: Gauge: 10, 14, 23, 30, 39, 47
