1 Set of 2pcs 6 String Acoustic Guitar Bone Bridge Saddle and Nut Ivory White Real Bone Made of real cattle bone, It is a perfect natural material Bone nut size: 43mmX6mmX8.5mm Bone saddle size: 72mmX3mmx9mm This bone has minimal porosity and a great appearance. Its density and minimal porosity are features that yield good intonation and clarity,dropping them on a hard surface you can hear a difference in their resonance 1 Set includes : 1 pcs nut and 1 pcs saddle