NSD Powerball - The Definitive Fitness InstrumentNSD Powerball has totally revolutionised the way that you exercise your wrists, arms, shoulders and chest! Explosive Power!Powerball is only the size of a tennis ball, but set the internal rotor (GyroBall) in motion and it will literally become like a tiny hurricane in the palm of you hand - exploding with mind numbing gyroscopic force! The Powerball comes alive with force, furiously thrashing and jerking as your arm and wrist try to keep it under control, spinning it faster and faster until you have it up to almost 15,000 RPM's and it's exerting about 40lbs of pressure on your limbs at a speed of 250 revolutions per second - no batteries, just pure gyroscopic power - truly the fastest human propelled device on earth! NSD Powerball has hit the fitness market like a train and we guarantee that it will give you a full arm workout quite unlike any other you will ever have experienced regardless of your current fitness levels. Its secret lies in the way it isometrically tests the muscle groups in the arms and shoulders - you can have the ability to curl the heaviest of dumbbell's down in the gym but take a NSD Powerball up to 13,000 RPM for just 30-40 seconds and we absolutely guarantee a muscle burn of extreme proportions. Dense Muscle Growth Or Pure ToningDepending on the speed you use it at NSD Powerball will generate a gyroscopic resistance of between 1-40lbs. At low speeds it will effectively tone and shape the arms and shoulders yet without leading to unwanted muscle growth in these areas. Excellent results can be achieved from using it at between 6-8000RPM for around 7 minutes per day. Spin it up above 12,000RPM however and it takes on a whole new character - the resistance climbs in proportion to the speed of the internal rotor and at 15,000RPM the pocket sized Powerball is spitting out up to 40lbs of gut wrenching torque and will give a serious hammering to even the most powerfully developed arm. And there is no motor in a Powerball Gyro - speed is generated simply by the subtle movement of the wrist and arm muscles which is what makes Powerball such an extraordinary toning or muscle building tool! Unlike a free weight which will traditionally work on one specific group with each exercise, development with a NSD Powerball takes place throughout the full range of movement and will test up to 90% of the muscles in the arm in a single 7 minute session. 50 Different Dumbbells - Workout Anytime, Anywhere, AnyplaceNSD Powerball Gyros have an almost unlimited resistance range in that 1-40lb band combined with its pocket sized compact design it is like having access to 50 different dubbells - all of which you can use:
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