Thomastik-Infeld RONDO viola G, … Thomastik-Infeld RONDO viola C, carbon steel/tungsten/silver Item No. RO24 Manufacturer Thomastik-Infeld Thomastik-Infeld RONDO viola SET Thomastik-Infeld RONDO viola C, carbon steel/tungsten/silver × Thomastik-Infeld RONDO viola C, carbon steel/tungsten/silver