Brushed-chrome LSR roller nut assembly reduces friction that can cause tuning instability. For use on American Deluxe guitars with HSS pickup configuration; also fits older Strat Plus models with included Wilkinson adapter. For string gauges from .008 to .056. Includes instructions, mounting hardware, shims and Wilkinson adapter. Note that modification may be required for correct installation. • MFSKU 0990812000 • UPC 717669448448