This is the ultimate in tuning keys. The locking feature eliminates the
need for multiple string wraps, and trem users no longer need a locking
nut that deadens string sustain and all annoying Allen screws and
wrenches (added weight). Tired of tying strings? This is the answer.
This model is proven to hold strings tightly, allowing the guitar to
stay in tune to improve playing enjoyment.
Included the bushings and washers