53 of 56 people found the following review helpful
The ultimate powerball,
This review is from: Powerball 350 Hz Metal Pro (Sports)
This is a solid metal version of the standard powerball - a gyroscope you spin with your hand to strengthen grip and build up arm muscles.
It puts a greater pressure on your arm and wrist, which is great if you're getting good at the standard ones. Certainly, after using this I did find the standard plastic powerballs to be much easier and lighter to use. This powerball is heavier and generally has a more substantial feel to it. It also starts much more easily, perhaps because of the smoothness of action and balancing they have put into it.
The special case it comes in is funky, with magnetic fastenings. They also include some parts to fix the powerball if you should need to (I haven't yet).
My only criticism is that it's not got the fun factor of the powerball techno or the other ones with flashing LEDs - it's much more for the serious powerball enthusiast (as reflected by the price tag).
It's definitely the next step up in proper, athletic use of powerballs though and I try to use mine at least once on each arm per day to keep that grip and arm strength exercised!