Thomastik-Infeld RONDO cello G Thomastik-Infeld RONDO cello C Item No. RO44 Manufacturer Thomastik-Infeld Thomastik-Infeld RONDO cello A+D Thomastik-Infeld RONDO cello C, spiral core/ tungsten-chrome wound × Thomastik-Infeld RONDO cello C