Gauges: 12-16-24-32-42-53. A three pack of D'Addario EJ11 Acoustic Strings. Known for their crisp bright tone, 80/20s are popular with stage and studio pros. D'Addario is the world's largest manufacturer of strings for musical instruments. Many top guitarists won't play any other brand. Regardless of your playing style, D'Addario has a set of strings that's right for your acoustic guitar