Original Powerball Basic
€27.10
(tax incl.)
The training device for fingers, wrists, upper and lower arms to increase grip strength and physical condition on the basis of centrifugal forces. With enclosed cord, the rotor is started and maintained by rhythmic hand movements to speed. Up to 16000 revolutions per minute are achievable with centrifugal forces which 80 times of the rotor own weight be - thus 16kg!