Used for a left handed guitar. This bone has minimal porosity and a great appearance. Its density and minimal porosity are features that yield good intonation and clarity. The saddle and nut are made of high dense real cattle bone which is much harder and will give better tone than the cheaper plastic part. These genuine bone guitar saddle and nut has pre-cut string slots which requires very little experience to install Applicable to 6 string Left handed acoustic guitar. Material: Bone Color:White Nut Size:Approx. 52 x 6 x 9 mm / 2.05 x 0.24 x 0.35 inch. Product List： 1 PCS Bone Guitar Nut Great accessory for guitar enthusiasts, ideal replacement for your Left Handed 6 strings acoustic guitar. Note: Please measure the dimension of your guitar saddle and nut carefully before your order it. Please note you may need to sand or deepen the slots, and polish the saddle and nut when you install it.