Beef bones are better, denser and harder. In this way, the vibration of the piano will be much better, and the sustain will be much better.

1. Ordinary plastic nut: It has low hardness and low density. After being installed, the strings will quickly dig into deep grooves. The guitar will not sound bright and will sound dull.

2. Ox bone saddle: The hardness is relatively larger. After being installed, the strings will not have obvious grooves. The tone is brighter and the sustain is better. Compared with artificial ivory, the hardness and density are still the same. Relatively small.

3. Artificial ivory piano pillow: It is very hard and makes a jingling sound when thrown on the table, just like the original one.