Grover 145NL4 Titan Bass Machines

Grover 145NL4 Titan Bass Machines, Machine Heads for Electric Bass, Set for left-handed instruments, Semi-open design, Gear ratio: 23:1, Configuration: 4-in-line left (bass side), Shaft diameter without mounting bushing: 13 mm, Installation diameter with mounting bushing: 16.7 mm, Special butterfly knobs made of metal, Finish: Nickel ...