GHS Bright Bronze 12 String Acoustic Guitar Strings - 80/20 Copper Zinc alloy. The unique core-to-cover ratio combined with the specially tempered alloy delivers a bright tone with exceptional feel. The perfect sound for all your guitar explosions. GHS has made the highest quality strings since 1964. The choice of numerous guitar greats!
Gauges:
BB60X Extra Light - 9-9 - 12-12 - 15-8 - 26-11 - 34-14 - 42-22
BB80 Light - 11-11 - 14-14 - 20-9 - 30-12 - 40-16 - 48-26
BB100 Medium - 12-12 - 16-16 - 26-10 - 34-13 - 44-018 - 52-30