Nut - Original Fender, LSR Roller LSR roller nut reduces friction that can cause tuning instability Comes with instructions, mounting hardware and Wilkinson adapter for older Strat Plus models Used on American Deluxe HSS guitars. Kit Includes: LSR Nut, Shims, Mounting Screws and Bezel Adapter (for Retrofitting to Wilkinson Nut Equipped Guitars) Will Accommodate String Gauges from .008 to .056 Some modification may be required.