The world most prominent artificial power purely mechanical device!
There’s no battery or electricity inside the device, It is an application by centrifugal force & inertia like a gyroscope. Use the rope twine and taut the ball, and take the rope into the above hole, quickly pull the rope down, then the rotor rotated at high speed. This Wrist ball is a portable training device, it does well in arms training to keep muscle stronger.
warm-up exercise equipment, especially for sportspeople, such as golf, tennis, squash, cricket, badminton, baseball, bowling, basketball, racing and other outdoor climbing by the wrist and other sports.
Beneficial to many musicians, such as piano, guitar, drummer.
Suitable for office workers, because of long hours, less activity.
Teens can use their fingers to flexibly and have some help in learning calligraphy, fine arts, and musical instruments.
Middle-aged and elderly to achieve the effect of health care.
The principle of gyroscope and celestial mechanics, the powerful force generated in the rotation by the centrifugal rate and the law of inertia in the main motion arm. The second generation of automatic start section by the spring pulling out of the center of rotation, the traditional start rope to start, suitable for novice and rely on start rope game player.
Computer calibration ball heart balance, high stability, and low noise.
Built-in spring to start using the spring center rotation inertia.
How to use:
holding the wrist ball with one hand, the opening part of the upward, the other hand will be the head of the rope into the hole in the center of the ball.
with the thumb of the hand holding the ball, turn the ball forward, the rope tightly wrapped around the center of the ball in the center groove.
when the rope around the center of the ball half a circle, stop turning the ball center. Use one hand to hold the ball, the other hand to pull out the rope quickly and let the ball center rotate at the fastest speed.
immediately open the part down, with the wrist part of the ball, until you can feel the speed of the ball can continue to accelerate.
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