Dynamic: Non-battery. Non-electricity.
It is powered by rotating the wrist. The faster we rotate the ball, the stronger the dynamic and torsion is produced. The speed of rotation
can reach over 12,000 RPM.
Functions:
It is a very effective tool to increase the strength of fingers, wrist,
and arm. Besides, it can make the circulation of the blood better in
a short time,strengthen the ligament of the wrist, and reduce the
injuries caused by sports.
Merits:
1) It is a small ball, which can make people achieve sporting
effects in a very short time.
2) Almost everyone can play it, no matter the old, adults, or
teenagers.
3) No time or location limits. It can be used at any time and in
any place while chatting, watching TV, going outing and mountain
climbing, and taking a bus.
Features:
1) The balance of the rotor has been corrected by computer, so the
ball has very excellent stability.
2) There is a circle of silicone rubber on the surface of the ball.
That can prevent the ball from sliding down to the ground, and
the feeling of grasping is also better.
Inner packing: 1pc/color box
Outer packing: 60pcs/ctn
Carton dimensions: 60.5 x 35 x 31.5cm