Thank you for viewing! ・Instant purchase is welcome! ・Since this is a new item, please refrain from price negotiations. ・Please note that I may be slow to respond. High-Quality, Resonant Bone Nut and Saddle Set for Acoustic Guitar - Maintenance and Sound Improvement - 1 Set ✅ Replacement parts for acoustic guitar nuts and saddles: [Cow bone]. ✅ High-quality cow bone is used to enhance the sound, and it is highly regarded for improving sound quality. (It produces a loud, stable sound.) ✅ Saddle dimensions: 72mm x 9mm x 3mm / Nut dimensions: 43mm x 9mm x 6mm (Handmade, so there may be slight variations.) ✅ If you are using plastic saddles and nuts, please consider replacing them. Shipping method: We will ship via regular mail or Click Post. Delivery to your mailbox will take approximately 3-5 days. ※ Please note that there may be slight size errors and minor stains due to the imported nature of the product.