M-128 Golden Gate A-style Mandolin Tuners- Removable Buttons:These highest-quality tuning machines combine features of the Vintage Era with contemporary styling. The plates are embossed with decorative designs and feature shaft-above-worm construction to fit most modern pegheads. Removable buttons are of ivoroid and these machines are heavily gold-plated for a rich appearance. All bushings and mounting screws are included.