Gotoh SG301-20 Tuners 3L/3R G, Machine Head Set for Electric Guitar & Acoustic Guitar, Configuration: 3 Left / 3 right, Closed construction, Buttons: Kidney, metal, Gear ratio: 1:18, Shaft length (to string hole): 22.2 mm, Bore: 10 mm, Attachment: Screws and hex-head banjo bolt, Screw tab angle: 90°, Surface finish: Gold, Includes fastening screw, nuts and hex-head banjo bolts, Made in Japan