Rotosound Roto Bass Nickel on steel wound Bass Guitar Strings. Roto Bass Strings are extra bright, and are unsilked, so therefore less expensive than the RS series.

Rotosound Solo Bass 55 Bass Guitar Strings. The original ‘pressure wound’ Bass string designed in the mid 70’s. Due to rolling, mass is retained and therefore brightness. Solo Bass strings eliminate finger noise, reduce fret wear, work well on fretless basses and excel in the studio.