Dietrich Parts String Butler Arrowhead-BK-BK
Dietrich Parts String Butler Arrowhead-BK-BK, String Butler, Hardware for improving the tuning stability of electric guitars, Designed for guitars with 3L / 3R machine heads on the headstock, Corrects the position of the E, A, D, G, B, E string into a straight line through the nut notches, thus preventing the