For those of you who find that the 250HZ just is not "man enough"...
350Hz Metal Powerball
* Almost twice the weight of the Neon or 250Hz models
* Perfect for golfers, musicians, squash, tennis, fencing, basketball, badminton, archery, cricket etc
* Use for rehabilitation and relief from carpal tunnel syndrome and RSI
* Finished in a magnificent mirror-chrome
* Features: 6 function digital speedmeter/counter
* Comes with transparent 2-piece display case