Why are blade master's knives expensive?

Good raw materials and high preservation value. According to the query JD.COM network display:

1, the raw materials are good. The hilt of the Sword Master is carefully selected from the hand-carved crater of the old ebony in Africa. It is made of stainless steel casting owl tail ornaments, inlaid with black ceramic beads and eyes, and hand-made leather case made by Italian plants.

2. High preservation value. Master Jian's sword is handed down from generation to generation, but it is of high preservation value. The mechanical design is very clever. Long handles and sharp blades can cut things with great strength.