Wittner fine tuner cello, black Wittner fine tuner, cello 4/4 - 3/4, nickel plated Item No. 54912 Manufacturer Wittner Petz fine tuner cello, nickel … Wittner fine tuner cello 4/4 - 3/4, nickel plated × Wittner fine tuner, cello 4/4 - 3/4, nickel plated