Viola strings "Spirocore Künstler-Seilsaiten" made by Thomastik-Infeld S-18, 19, 20 Product Name: Thomastik-Infeld Spirocore Künstler-Seilsaiten (Artist Strings). Instrument: Viola (A string, chrome wound). Features: "Spirocore" is a steel core string, characterized by its powerful and brilliant sound. Users: The package lists the names of famous cello, viola, bass, and violin players who use these strings. Material: Chrome steel wound String Length: 37 cm (open string) Spirocore Künstler-Seilsaiten VIOLA g III sol Chromumspinnung (Viola G string, chrome wound) Price for a set of 3. I think it's unused, but I'm listing it as "near new". Mid-range viola strings, Spirocore Künstler-Seilsaiten. - Brand: Thomastik-Infeld - Model: Spirocore Künstler-Seilsaiten - Type: Viola Strings - Gauge: mittel (medium) - Catalog Number: S-19 - Catalog Number: S-18 - Catalog Number: S-16 Thank you for viewing.