Gauges 50-70-85-105-135.D'Addario EXL160-5 bass strings employ 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 string life. 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 5-string bass.