sport magical wrist ball 1.increase strength of fingers ,wrist ,hand 2. oem wrist ball 3.. without light

  

sport magical  wrist ball  

Detail of this item

material	pp
package	color box
small color box	100*80*70mm

Features:

Wrist ball is a portable trainning device, it does well in arm trainning to keep muscle stronger . There's no 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.

 Results:

               1. For the person who like golf and bowling , baseball, basketball volleyball  handball ,Kendo tennis, badminton that have to rely on  wrist in the movement can make you more powerful

                2. avoiding ligament injury for computer typist , practicing piano

                3. To wrist workers, need to practice.

                4.  more rehabilitative function, to prevent muscle rigidity.

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