Superb tone that really lasts. Gauges: 11-15-22-32-42-52. DAddario EJ26 Custom Light Acoustic Guitar Strings employ a genuine phosphor bronze alloy that retains flexibility as well as brilliant tone for many hours of hard play. Computer-controlled wrapping around a hex core ensures consistency and extends life. DAddario is the worlds largest manufacturer of strings for musical instruments. Many top guitarists wont play any other brand. Regardless of your playing style, DAddario has a set of strings thats right for your acoustic guitar.