Anybody tried these out to improve forarm strength?

http://www.gripprotrainer.com/

Thanks

Not tried them but if you can get hold of some weights, wrist curls and reverse wrist curls would be a lot better, and the work your grip to.

Ive got weights and a gyro ball but thought these might be good to leave at work when sat at the desk.

Wrist curl

http://www.youtube.com/watch?v=TMJ4zIZzZxY

and reverse are pretty self explainitary

Might do mate, give them a go.

It says to use them here in fact...
http://www.mxtrainingjournal.com/free_motocross_articles.asp?id=29

Powerball's are pretty good for increasing wrist/forearm strength....... just think you could have arms like this dude!

Ha ha as if he got arms like that with one of them!!!

Quoted from 184

Wrist curl

http://www.youtube.com/watch?v=TMJ4zIZzZxY

and reverse are pretty self explainitary

...but be careful, it's easy to overload the wrist and grind those little bones away.

As a teen I used the sprung grip things to get my forearm/grips strength up, combined with traditional weight training using barbells and dumbells and curling bar I was able to shake off the mr.puniverse image before getting to uni

They do work but get very boring, used to use similar things when I was an apprentice so I could do up pipes as tight as the old boy showing my how to.