FineTune Pegs are made of a hi-tech composite and a lightweight alloy, so they are easy to handle and offer great longevity. FineTune Pegs need not be tightened or loosened to tune the instrument. It is sufficient just to turn the internally-geared head. You can confidently tune your instrument in a fraction of the usual time taken, gaining extra time for play or practice. FineTune Pegs do not move in the pegbox, so wear on the pegbox is massively reduced, and they are not succeptable to atmospheric or climatic influence.