ABHT-4 Sets Of 8Pcs 6 String Acoustic Guitar Bone Bridge Saddle And Nut Made Of Real Bone Many luthiers and guitar manufacturers prefer bone guitar nuts for their instruments. The bone we offer is oxen bone from China. This bone has minimal porosity and a great appearance. Its density and minimal porosity are features that yield good intonation and clarity. Material: Real Bone colour: White Bone nut size:43mm x 6mm x 8.5MM Bone saddle size:72mm x 3mm x 9mm Package Includes: 4 pcs nut 4 pcs saddle Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.