Check the listing for details. Guitar Bone Blank Nut Master Radius Natural 4 1/2L. Color: Bone, Condition: New. Listed at 11.59 USD. Guitar Nut Bone Blank MasterBoneExtra Long Tall Size.273" Thickness (17/64" [6.9mm]).375" Height (3/8" [9.5mm])4.52" length (4 33/64" [115mm])Enough product for 2 nuts, cut shape and create. Electric, Bass or Acoustic setups.NOTE: This is a bone nut blank, the product is formed with bone and will need to be cut and shaped by you.NOTE: Sanding, cutting and shaping bone creates very fine dust, appropriate breathing protection should be used. Specifications:Extra Long Tall Size ThickBone Nut Master Blank to be shaped in the field to fit your application.Enough for two nuts.Pre-shaped rear radius, just cut to desired length, radius and slot..273" Thickness (17/64" [6.9mm]).375" Height (3/8" [9.5mm])4.52" length (4 33/64" [115mm])Enough product for 2 nuts, cut shape and create. Electric Bass or Acoustic setups.Natural MaterialNOTE: This is a bone nut blank, the product is formed with bone and will need to be cut and shaped by you.NOTE: Sanding, cutting and shaping bone creates very fine dust, appropriate breathing protection should be used.Bone material is preferred by many builders to create excellent sustain and tone