Wiki-Mangnolia obovata

A type of wood often used to make handles for Japanese kitchen knives. It is characterized by its almost white appearance. It is used as a wood for various products, including kitchen knives and Japanese sword handles, because it is relatively uniform, has little variation in quality, and is easy to process.
Mangnolia obovata Japanese knife

Related websites
Japanese Knife Handles Guide | KIREAJI
Essential Japanese Knife Care Tips for Durability | KIREAJI