Red Brand Copper Bronze Strings. The first brand of Copper Bronze acoustic guitar strings in the world. With the highest copper content of any acoustic guitar strings - more than 80/20 strings, more than phosphor bronze strings - Red String provide precise articulation, a louder sound, greater projection and a warmer, richer tone from the moment you tune 'em up. There hasn't been a significant new material introduced for acoustic guitar strings in 35 years until now!
7312 Light - 12-16-25-33-43-53
7323 Bluegrass 12-16-25-36-46-56