Trem-Nuts  

TREM-NUT is used by some of the world's leading manufacturers including Carvin, Parker Guitars, Brain Moore Custom Guitars, Steinberger, and the Fender Custom Shop for good reason. It works better than graphite, bone, plastic or synthetic nuts at keeping your guitar in tune and providing superior resonance and tone.

The Test: Take a nail, an ordinary nut and a TREM-NUT. In an inconspicuous spot, grind a nail back and forth across each nut just like your guitar strings move during trem or string bends.

Then, feel it happen.  TREM-NUT activates, releasing lubricants over 500% slipperier that graphite!   For your guitar strings, it's like gliding on ice rather than concrete. Strings float effortlessly back into tune.