Gauges 09-10-13-20w-09.D' Addario J60 5-String Banjo Strings are top quality plain steel and nickel-plated steel wound strings. J60s are a leading choice among top country and bluegrass players.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 banjo.