
Nickel on steel, extra bright, unsilked so therefore less expensive than the RS series.
RB40 - .040, .060, .080 , .100
RB40-5 - 5 String Set - .040, .060, .080, .100, .125
RB45 - .045, .065, .085, .105
RB45-5 - 5 String Set - .045, .065, .085, .105, .130
RB50 - .050, .070, .090, .110
Nickel on steel, extra bright, unsilked so therefore less expensive than the RS series.