So are these actually legit? I had one ages ago before they were out in the UK, and I'm not sure if the increase in my forearm was due to this or excessive self-love. I'd be interested to see an article/source that shows that these do in fact help with wrist/forearm/finger strength as my wrists are most certainly a weak point.
For how much they cost, is it not worth trying?
But from reading the official site, I think it is proven they can help.