D'Addario EJ11 Bronze strings are known for their amazingly crisp and ultra-bright tone, and are popular with stage and studio professionals. 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 that's right for you. Gauges 12-16-24-32-42-53.