Martin Era MP550T Treated Acoustic Guitar Strings Medium 13-56 2-channel Two-way zipper

Two-way zipper

Thanks to its powerful image processing and sending capabilities

Original Series design (at the saddle and at plate)

For quick usability

Martin Era MP550T Treated Acoustic Guitar Strings Medium 13-56 2-channel Two-way zipperBuilt to achieve unmatched tone and playability, Martin Era strings set a new standard for what a phosphor bronze acoustic guitar string can be. Combining the best technologies from the Martin Strings lineup, Martin Era strings feature a patented Lifespan treatment to protect against corrosion, Flexible Core construction to enhance fretability and comfort, and silk wrapped ball endsdesigned with vintage instruments in mind and as a premium touch that