Shanghai Heshuo? If it is a magnetic therapy stick, it is fake. I bought an eight-wheeled one at his house before, but it didn't work for a while. Later, I had to continue to go to the health center. It happened that the boss also had a magnetic therapy stick, so I asked him to roll it for me, and the effect was good, but it was not from Heshuo's family. The boss said that Heshuo's is fake.