Guitar Tuning Keys Model : FA-01 Option Colors: Chrome, Gold , Black ,Nickel ... tuning keysModle : FA-01Common Machine HeadAvailable Finishes : NI (Nikel ), CR ( Chrome ), BK (Black chrome ) ,GD (Gold )Guitar tuning ... keysModle : FA-02Common Machine HeadAvailable Finishes : NI (Nikel ), CR ( Chrome ), BK (Black chrome ) ,GD (Gold )Guitar tuning ... get more details . Hotsale Guitar Tuning KeysFA-01