- Description
Strengthen fingers, wrists, hands, forearms, shoulders and bicep etc., and also be beneficial in promoting co-ordination and blood circulation.
Rehabilitates sore muscles and joint, great for musicians, guitarists, pianists, drummers.
Small, compact and transportable, you can take anywhere. Simple to start with a pull-string.And the ball with flashing LED
All you need do is to increase the speed by making a rotational wrist movement and to keep in sync with the spinning of the ball.
The faster you spin the harder your muscles work.
Rehabilitates sore muscles and joint, great for musicians, guitarists, pianists, drummers.
Small, compact and transportable, you can take anywhere. Simple to start with a pull-string.And the ball with flashing LED
All you need do is to increase the speed by making a rotational wrist movement and to keep in sync with the spinning of the ball.
The faster you spin the harder your muscles work.
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