Add some warmth to your sound.
This is the first brand of copper/bronze acoustic guitar strings. These strings contain the highest copper content of any acoustic guitar string-more than 80/20, more than phosphor bronze. Red Strings provide precise articulation, louder sound, great projection, and a warmer richer tone from the moment you tune them up. There hasn't been a significant new material introduced for acoustic guitar strings in 35 years... until now!