Martin MM13 Retro Series Medium Acoustic Strings
Bring out your guitar's true voice with Martin Retro Series Acoustic Guitar Strings. Crafted from monel, a long-lasting proprietary nickel-based alloy blend that mellows quickly to a warm vintage tone that brings out the unique, woody sounds in your acoustic guitar.
Martin's newly redesigned string packaging makes the product easier to identify and ensures a longer shelf life. Martin string packages now feature a unique color for each product family making it simple to efficiently browse their entire line and find exactly what you're looking for. Martin has also begun packaging their strings in a sealed flow wrap packet to help ensure that the strings stay fresher longer, allowing players to store strings for long periods of time without worries of tone degradation.
String gauge: E - .013, B - .017, G - .026, D - .035, A - .045, E - .056