Genuine Grover Sta-Tite Ukulele Set of four tuners (2+2) Nickel with black button
Manufacturers Part Number : 9NB
The one-piece back plate, brass gear, die cast button and knurled bushings are the same as those used on the Sta-Tite™ guitar machine head.
The #9 series has the same features, but with a shorter string post with the
string hole .630” from the back of the base. The gear ratio is 14:1. Available in nickel and gold with black or white buttons and each set includes all mounting hardware.