What, why, how?
The NSD Powerball is a hand gyroscope - a tennis ball sized sphere containing a computer balanced flywheel which can revolve freely inside.

As soon as you put the flywheel spinning (by means of subtly rotating your wrist), it begins to generate an extraordinary force (otherwise known as gyroscopic inertia) which acts immediately against your fingers, hand, wrist, arm shoulder and even chest!

The ball weighs less than 300g but can pack a 40lb punch depending on the speed at which the rotor is spinning - the present world record is over 16,000rpm!...can you even come close?? :-) and will make even the fittest and strongest people on the planet burn because it is hitting muscles in the fingers, hands, arms, shoulders and chest that you simply won't have used before with conventional forms of exercise.

NSD Powerball is one of the most dynamic toning and muscle building devices for men and women that money can buy.

Check out the youTube video below

Product Description:
'Younger brother' of the 250Hz Pro model, this superlative gyro offers exactly the same high speed performance but ships without the digital speed meter which can be added at a later stage when required.

The same thorough workout on your arms and wrists therefore and at a very affordable price!