Dietrich Parts String Butler V3 BK

Dietrich Parts String Butler V3 BK, Hardware to improve the tuning stability of electric guitars and steel-string guitars, Designed for guitars with 3L / 3R headstock machine head configuration, Adjusts the position of the A, D, G, B strings to correct the string routing through the nut slots , thus preventing the guitar strings from getting stuck, Greatly improves the tuning stability of your guitar and increases the sustain, Keeps the tuning of the strings even during very intense guitar playing (also copes with extreme bends), Fast and easy installation, Version V3 with minimum post distance 35 mm / maximum post distance 58 mm, Colour: Black@+*Note:* Not compatible with machine heads with bushings