In fact, the original nut on many beginner guitars are plastic parts, please don't dislike them, because this plastic part is completely enough for beginners, who usually indulge in learning skills and ignore the sound quality of the guitar itself. If you have ever noticed that bone nut is usually used on some mid-to-high-end guitars, why? Because the bone conducts sound better, it can reduce a lot of energy loss, your guitar will have a more durable sound. Many famous guitar manufacturers or hand-made luthiers are keen on the sound of bones, so bones are widely used in their guitars. If you are tired of your existing plastic parts, we suggest you try a cattle bone, it will definitely bring you a new acoustic experience. A complete bone brings complete and well-balanced sound, which has an overwhelming advantage compared to industrial synthetic plastic or bone meal molds. Yes, Vencetmat's bone nut is cut from a complete of cattle bone wall, just this bone you need!Product Properties: Material: Completely cattle bone. Color: Unbleached Bone. Width: 1.69'' (43mm). Height: 3.5''(9mm). Thickness: 2.36''(6mm). R=15.7''(400mm).Are these Nuts' size suitable for my guitar??? Yes, we make sure it will fit most six-string acoustic guitars. If it is too big, then it needs to be polished, please don't worry, this is just a simple job. Their size can also be installed on most electric guitars, but this usually requires more work.Package Contents: Guitar Nut x 4.