Graph Tech Acoustic 3+3 Skeleton Button Nickel

The PRN-3411-N0 is a set of Ratio Open Back Tuned Machine Heads for an acoustic guitar that uses 3+3 tuners It has a skeleton button and is finished in nickel Ratio - Tuned Machine Heads are the first and only machine head to incorporate the different string gauges into the tuning equation We balanced the individual gear ratios to each string dramatically simplified the tuning process No more overshooting the G string or twisting away on the