WB-586 Metal Power ball

4) The axle is made of steel, not iron. It is not easy to be broken

3) The metal shell is especially durable

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.

1) The balance of the rotor has been corrected by computer, so the ball has very excellent stability.

Features:

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.

2) Almost everyone can play it, no matter the old, adults, orteenagers.

1) It is a small ball, which can make people achieve sporting effects in a very short time.

Merits: 

5. it can make the circulation of the blood better in a short time, 

4. It can make the hurt hand return to original condition by degrees and rehabilitates sore muscles and joints.

3. Great benefit and avoid the ligament injuries who are the typists, musicians, guitarists, pianists, drummers,

2. Increases strength in fingers, wrists, hands, forearms, biceps, triceps, ligament and shoulders

1.Perfect exercise gadget for sports like golf, tennis, squash, cricket, badminton, baseball, bowling, basket-ball,, motocross, mountain climbing.

Function:

There is no any battery or electricity inside the device, It is application by centrifugal force & inertia like a gyroscope. 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.

Dynamic:

WB-586 Metal Power ball,with or w/o speedometer

WB-586 Metal Power ball,with or w/o speedometer,Aluminum case, More stronger than plastic case, OEM logo,custom package