Gauges: 10-14-23-30-39-47. DAddario EJ38 12-String 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. Many top guitarists wont play any brand other than DAddario. Regardless of your playing style, DAddario has a set of strings thats right for you.