Grover 533G Vintage Locking Rotomatic
Grover 533G Vintage Locking Rotomatics, guitar machine heads, closed gear, ratio: 15:1, 6 pieces: 3x left, 3x right, thumb screw locking mechanism, axis diameter without mounting sleeve: 6 mm, mounting sleeve diameter: 8.8 mm, Metal Buttons, Gold Finish, Made in USA