Martin MJI12T Era Jason Isbell Signature Strings

Built to achieve unmatched tone and playability, Martin Era strings set a 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 ends-designed with vintage instruments in mind and as a premium touch that symbolizes Martin's handcrafted string-making history. The Artist Light version was developed in collaboration with six-time GRAMMY winner Jason Isbell and features a more traditional SP core to match his signature guitar sound.

Features:

- Designed for unmatched tone & playability
- Combines the best technologies from all the Martin Strings
- Lifespan treatment to protect against corrosion
- Flexible Core construction enhances fretability & comfort
- Designed with vintage instruments
- Developed in collaboration with Jason Isbell
- Gauge: 12- 54 92/8 Phos Bronze