Optima 1221/32 Harp Zither "Bergfee" Steel Red, Contra Munich - Bb32 Contra Bass -B-32 (B flat) Single String / Harp Zither Bergfee Steel (red)Munich TuningScale length: 43,5 cmHARP ZITHER Bergfee Steel Red is our strongest zither string. It is made offinest steelwith very little silk (on the steel core), wound with a fine silver plated wire. Powerful in tone (stronger and more aggressive sound than Nylon Blue). This string is also great for acoustic playing and electromagnetic sound transmission (sound pickup).