Machine heads for acoustic guitars- Configuration: 3x left / 3x right- Open- Gear ratio: 18:1- Vertical mounting for solid headstocks- Axle diameter without mounting sleeve: 6.35 mm- Mounting diameter with mounting sleeve: 8.80 mm- Butter bean knobs- Finish: Nickel

Machine Head Set for Ukulele- Model: 2 right, 2 left- Ratio: 14:1- Open- Shaft diameter without mounting sleeve: 6 mm- Installation diameter with mounting sleeve: 8.4 mm- Nickel plated with black plastic buttons- Made in USA

Set of Machine Heads for Mandolin- Tuning pianos of different lengths for vintage "F"-style mandolins- Configuration: 4 left, 4 right- 4-On-A-Plate design- Mounting diameter with mounting sleeve: 8.30 mm- Distance between axles: 23 mm- Open- Worm thread below gear- Gear ratio 18:1- Round pearloid buttons- Nickel-plated- Delivery quantity: 8 pieces

Set of Machine Heads for Mandolin- Equally long tuning buttons for standard "A" style mandolins- Configuration: 4 left / 4 right- 4-On-A-Plate design- Mounting diameter with mounting sleeve: 8.30 mm- Distance between shafts: 23 mm- Open- Worm thread above gear- Gear ratio 18:1- Colour: Nickel

Grover 409NW Professional Mandolin Nickel, machine heads for mandolin, tuning pegs with same lengths for standard "A"-style mandolins, open, specially designed worm gear, 8 pieces: 4x left, 4x right, 4-on-a-plate design, ratio: 18:1, mounting sleeve diameter: 8.30 mm, shaft distance: 23 mm, round, white plastic buttons, nickel finish

Grover 409FVC Mandolin Vintage Nickel, machine heads for mandolin, tuning pegs with different lengths for vintage "F"-style mandolins, open, specially designed worm gear, 8 pieces: 4x left, 4x right, 4-on-a-plate design, ratio: 18:1, mounting sleeve diameter: 8.30 mm, shaft distance: 23 mm, round pearloid buttons, chrome finish

Machine Head Set for Ukulele- Configuration: 2 left, 2 right- Post length: 25.2 mm (.994")- Post diameter without mounting sleeve: 6 mm- Mounting diameter with bushing: 8.8 mm- Butter Bean metal buttons- Open- Gear ratio: 18:1- Nickel-plated- Includes bushings and wood screws

Set of tuners for mandolin- Open- 4-On-A-Plate design- Configuration: 4 left / 4 right- Gear ratio: 14:1- Engraved base plate- Metal shafts- Shaft diameter: 6 mm- Shaft spacing: 23 mm- Finish: Chrome

Locking Machine Head Set For Electric Guitars- Configuration: 3 Left / 3 right- "Thumb screw" locking mechanism- Mini Roto-Grip with a crown button- Axle diameter without mounting sleeve: 6 mm- Enclosed- Gear ratio: 18:1- Colour: Gold

Banjo Machine Head Set- Strong knurled sleeve with thread extension- Locks permanently into wood- Countersunk screw regulates tension- With metal knob- Axle diameter: 8.4 mm- Finish: Nickel- Set of 4 pieces

Set of Machine Heads for Mandolin- Configuration: 4 left / 4 right- Open design- 4-On-A-Plate design- Gear ratio: 14:1- Engraved base plate- Metal shafts- Shaft diameter: 6 mm- Shaft distance: 23 mm- Finish: Nickel

Grover 409GW Professional Mandolin Gold, machine heads for mandolin, tuning pegs with same lengths for standard "A"-style mandolins, open, specially designed worm gear, 8 pieces: 4x left, 4x right, 4-on-a-plate design, ratio: 18:1, mounting sleeve diameter: 8.30 mm, shaft distance: 23 mm, round, white plastic buttons, gold finish

Machine Head Set for Ukulele- Model: 2 right, 2 left- Ratio: 14:1- Open- Shaft diameter without mounting sleeve: 6 mm- Installation diameter with mounting sleeve: 8.4 mm- Nickel plated with white plastic buttons- Made in USA

Set of Machine Heads for Ukulele- Configuration: 2 left / 2 right- Open design- Gear ratio: 14:1- Chrome-plated metal knobs- Shaft diameter without mounting bushing: 6 mm- Installation diameter with mounting bushing: 9.15 mm- Finish: Chrome

Machine Heads Set For Electric Basses- Configuration: 2 left, 2 right- Open construction- Gear ratio: 22:1- Shaft diameter without mounting sleeve: 13.9 mm- Mounting diameter with mounting sleeve: 18.3 mm- Metal 'Elephant Ear' buttons- Finish: Chrome