What is the material of the fire unicorn bracelet?

The fire unicorn bracelet refers to the Wan Wen walnut bracelet, which looks like a flame from the front or side when it is flat, and is named after the unicorn pattern covered with fried meat.

Juglans mandshurica originated in Laishui, Baoding City, Hebei Province. It looks round and full, and the tip is very long, and the bones are particularly strong when played.