Powerball Kernpower Multi-Light AutoStart Max Gyroscopic Hand and Arm Exerciser with Auto Start Mechanism for Wind Up and Digital RPM Meter

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• Multi-light – a colour play between red, red and blue offers you visual feedback of your performance: from 1,000 revolutions per minute, the Powerball lights up red, between 4,000 and 7,500 revolutions per minute, a mix of red and blue lights is created from 7,500 revolutions per minute, the Powerball lights up blue.
• The functional principle – through a concentrated and dosed movement of the Powerball in the hand, the rotor can be "taken on tours": the higher the speed, the heavier the hand trainer is due to the resulting forces.
• The auto start – place your thumb on the rotary body and pull the power ball up to the stop or place the rotary body on a table top and pull the Powerball up like a wind-up car, release or lift off the table top and then start with circular rotation movements.
• Small strength training – regular use of the Powerball Basic is a perfect training of the gripper for athletes who depend on strength in the hands, but also musicians and people who work a lot with a keyboard.
• Regular training – The training prevents complaints such as Carpal Tunnel Syndrome, RSI (Repetitive Strain Injury Syndrome), tennis and golf farm or tension in the arm, neck and shoulders – Increases the grip strength of the fingers and coordination skills, trains shoulders, forearms and upper arms.