Specifications ◆Model Name: FGR-1 ◆Finish (Color): C / Chrome ◆Type: Lock Nut ◆Nut Width: 41mm ◆Contents: Lock nut body, tension bar, adjustment wrench, height adjustment spacer/shim, etc. (Items shown in Photo 2 are the contents.) GOTOH, highly acclaimed both domestically and internationally for its high precision and stable tuning! This is the high-precision lock nut "FGR-1" made by GOTOH. You can use it for a long time with even higher tuning accuracy and a solid construction. This is a masterpiece that shows GOTOH's attention to detail. Three spacers/metal shims of different thicknesses for height adjustment are included. Fine adjustments can be made to match the instrument, such as by stacking them. ◆Both FGR-1 and FGR-2 are 41mm wide lock nuts, and the difference is how the nut is fixed. FGR-1 is fixed with screws from the bottom (back) of the nut, while FGR-2 is fixed with screws from the top (front) of the nut. Since the FGR nut width is 41mm, it is mainly suitable for Stratocaster/ST type guitars, etc. GHL-1 and GHL-2 are 43mm wide models and are mainly suitable for Les Paul/LP type guitars. The first thing the plucked strings transmit their vibration to is the nut and the bridge. If you cut corners here, it's meaningless no matter how good the wood for the body and neck is.