Powerballs need more advertisement in the US!
This gadget has really helped me in the past weeks with my forearm strength. I'm very glad I got it, but the thing is, I found it on a rare occurance. I happened glance across a powerball recommendation at a tennis website. Never would I have even known this gadget existed if it wasn't for this.
Anyways, I feel that much more people would be buying these powerballs if they knew they existed! I wish I would have known about them earlier. Not trying to be a business manager here but it's just a good idea to make powerballs much more popular!