1)Zinc-alloy roller
2)A grade PC plastic
3)Speed run above 12000rpm.
4)Attach one start string.
5)Color:Different

Wholesale Cheap Price LED Energy Wrist Ball

 

 

Function:

1.Perfect exercise gadget for sports like golf,tennis,Squash,cricket,baseball,mountain climbing.

2.Increase strength in fingers,wrists,hands,forearms,biceps,triceps,ligamenta and shoulders.

3.Great benefit for musicians,guitarists,pianists,drummers.

4.Rehabilitates sore muscles and joints.

 

With 6-piece flash LED light, lights come with blueHandle strap come with PVC or silicone , Black or White Silicone for your choice.Various colors are available for PVC strap Various colors are available for plastic shell Available gift box or blister packing OEM logo can print on plastic shell or handle strap"force Ball"/ Wrist Ball"/" power " or Nothing on the Rubber grip for your choice.OEM is acceptable , customer logo and requirement are welcomed.