This bone nut is designed to the factory nut on 4 string Fender bass guitars and other Fenderstyle basses. Made from natural bone, it delivers reliable string spacing, stable tuning, and a clear, balanced tone for playing and recording. Key benefits Better tone and sustain than typical plastic nuts because bone transfers string vibrations more efficiently. Precise string spacing and slot shaping for consistent playability across all four strings. Durable material that resists compression and wear for long service life. Direct replacement for standard 4 string Fenderstyle nut slots, making installation straightforward. What this part does Serves as the anchor point for open strings at the headstock end, setting string height and lateral spacing. Helps eliminate buzzing and dead notes caused by a worn or poorly cut original nut. Contributes to intonation and tuning stability by keeping strings seated correctly in the slots. Compatibility and fit Intended for 4 string Fender bass guitars and instruments with standard Fenderstyle nut slots. Fits standard 4 string nut dimensions used on most Fenderstyle basses; recommended for anyone replacing a worn factory nut or upgrading to bone for improved tone. Material and performance Natural bone construction provides hardness and density that improve sustain, clarity, and harmonic detail. Precision cut slots hold strings securely and promote consistent vibration transfer into the neck. Low maintenance and longlasting compared with softer nut materials. Installation and use Simple replacement for players comfortable with basic setup and nut filing. Final slot shaping and string action adjustments are typically required for performance. Can be used by technicians during routine maintenance or by DIY musicians upgrading their instrument. Practical applications a worn or cracked nut to restore proper string spacing and eliminate buzzing on a 4 string Fender bass. Upgrade a stock plastic nut to bone to improve acoustic response when recording or playing through clean amp settings. Use in a custom build or restoration project where vintage Fenderstyle nut dimensions are required. What to expect A directfit replacement for standard Fenderstyle 4 string bass nut slots that improves long term stability and tonal clarity. Some final tuning of slot depth and shape may be needed to match string gauge and setup preferences. This bone nut provides a practical, durable upgrade for 4 string Fenderstyle bass guitars, delivering improved feel and tone while maintaining compatibility with standard nut slots.