Bone bridge saddle and nut set for Classical guitar - Material and construction: made of natural bone; hard, dense, yet light - Porosity and appearance: extremely low porosity with a beautiful natural appearance - Tone and clarity: high density and low porosity contribute to good tone and clarity - Playability and stability: the nut can improve resonance and sustain; enhances tuning stability; makes strings move more smoothly on the nut and last longer - Compatibility: designed for classical guitar setups requiring a bone saddle and nut - Use scenarios - Replace worn or damaged nut and saddle on a classical guitar to restore tuning stability and tonal balance - Upgrade from plastic or synthetic saddles/nuts to improve resonance, sustain, and string life - Use during setup or maintenance to improve playability and reliability for live performance or studio recording