The Martin MA140 Authentic Acoustic SP 80/20 Bronze Guitar Strings (12-54) deliver a bright, crisp tone with excellent projection and corrosion resistance, making them a reliable choice for all playing styles.

✔ 80/20 Bronze Wrap Wire – Produces a bright, vibrant tone with enhanced clarity and projection.
✔ Tin-Plated Core Wire – Provides corrosion resistance for extended string life and consistent performance.
✔ Light Gauge (12-54) – Balances playability with rich tone and sustain, suitable for versatile playing styles.
✔ High Tensile Strength Core – Ensures superior tuning stability and durability under rigorous playing conditions.