4/4 and 3/4 size.;The 390 series offers nickel strings in solo tuning.;Traditional construction for a familiar playing feel.;Bow position and pressure ratios remain familiar, but working with the strings is easier, they give a pure sound with a very rich harmonic spectrum.;This set is designed for basses from 106 cm to approx. 110 cm.;Fis/F# Tungsten;