Holmer Guitar String Locking Nut for Flord Rose Style Adjustable Height Locking Guitar Tremolo Bridge with Mounting Screw Shims and Wrench Black.

This is a brand new top mount Floyd Rose style locking adjustable guitar nut. Height adjustment of the strings at the neck end. Black color, Zinc alloy material, length: 42.5mm(1.67in), Width: 16mm(0.63in), Height: 13.7mm(0.54in). A nut lock is used on quality guitars instead of the nut at the end of the neck, and allows the strings to be clamped at the nut, this will stop the guitar going out of tune after string bending or use of tremolo. It comes with everything pictured. Includes lock nut assembly with mounting hardware, height adjust shims, 2.5mm and 3mm allen keys that you can adjust to set the height of the nut.