Although I have only used it for the first time, I can already see that it makes a difference, it helps with the sensation of pain and the ability to use my arm. It is made from very soft materials. It goes on and fits easily and the adhesive surface sticks very well, contrary to what some other users said.
I am very satisfied so far.

I don't know why it didn't "work" for the other reviewers, but for me it was a perfect application. I have large hands and it is the only one that fit easily, it was secure and did its job perfectly, without putting pressure in the wrong places, like for example at the fastening point.

It's not worth it at all.
Apart from the fact that it doesn't support the contact point well, the adhesive Velcro easily comes off, making it non-functional.
It's better to get some other product