Bone Nut for Classical Guitar A pregrooved bone nut designed for quick, straightforward installation. Made from density natural bone, this nut offers a hard, smooth contact surface that supports clear string articulation and reliable string spacing. Key features Pregrooved for fast installation; suitable for DIY repairs and quick replacements. Material: natural density bone for a durable, smooth finish. Available sizes: 50 mm or 52.5 mm length, with a thickness of 6 mm and a height of 9 mm. Color: white. Weight: approximately 6 g per piece. Suitable for classical guitar nut replacement and can also serve as a replacement part for bridge saddle or for use on other guitar types where these dimensions fit. Why choose this nut Easy to fit: pregrooved design reduces setup time and simplifies string slot placement, even for users with limited experience. Reliable contact: bone provides a dense, hard surface that promotes even string seating and consistent vibration transfer. Clean finish: carefully polished for smooth edges and an attractive appearance that complements instrument aesthetics. Practical use scenarios a worn or damaged nut on a classical guitar to restore string spacing and playability. Upgrade a nut to improve contact and tonal clarity on smallscale electrics or acoustics that accept the specified dimensions. Keep as a spare for quick ontheroad repairs or for luthier projects that require a natural bone nut. Notes Check your instrument measurements against the listed sizes before installation and perform any final fitting or minor sanding as needed for a precise fit. This item is sold per piece.