Schaller BM Light 1R C, Single machine head for electric bass, 50% Weight reduction makes this machine head a lot lighter compared to conventional bass machine heads, Made from carbon and processed aluminium, Design: 1 Right, Construction: semi-open, Buttons: M4 (light buttons), Gear ratio: 1:22, Shaft length: 17.6 mm, Bore: 17 mm, Mounting: pins & locking nut, Schaller No.: 10270271.22.73, Surface: chrome, Includes banjo bolt and washer, Made in Germany