Schaller Tuner Banjo B4 Black/Black, Single Machine Head for Banjo, 5-Wheel planetary gear with central drive, Integrated locking mechanism in the button, Model: 1 left, Construction: Closed, Wings: B4 Pearloid black, Ratio: 1:4, Shaft length: 22.5 mm, Bore: 9.9 mm, Schaller Article Nr: 10410400.76.72, Colour: Black, Including banjo bolt and washer, Made in Germany