C.F. Martin and Co Tee sampler package offers a sample pack of strings and a t-shirt in one package. The package includes one set of MSP4100 strings, one set of MSP7100 strings and one large t-shirt.
MSP4100: Light Gauge 12-16-25-32-42-54. Martin SP Phosphor Bronze strings are made with the highest quality bronzed steel core wire and phosphor bronze wrap wire.
MSP7100: Light Gauge 12-16-25-32-42-54. Martin SP Lifespan Phosphor Bronze strings are made with bronzed steel core wire and phosphor bronze wrap wire, and then all six strings are treated for long life.
Martin SP 92/8 Phosphor Bronze Acoustic Guitar Strings are ideal live, in the studio, or wherever maximum string life is desired. The creation of these high performance strings was a result of research done in cooperation with specialty steel producers.
Due to the development of an industry leading ultra-high quality steel core, Martin SP strings resist breakage better than average strings. In addition, both the core wires and the plain strings are plated with a smooth, acoustic bronze finish. Though this golden bronze finish does enhance the beauty of your guitar, its purpose is much more functional - to prolong brightness, string life, and superior tonal quality to meet the high expectations of demanding musicians.