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Exercise your wrists and hands with the help of the hand strengthening ball!
This hand strengthening ball is a gyroscope consisting of a rotor that spins inside a solid sphere, activated by the movement of your hand. By rotating your wrist, you will develop increasing speed.
It is balanced and tested at speeds exceeding 15,000 revolutions per minute. This patent was originally invented to exercise the hands and later evolved into a popular performance competition product.
The energy needed to spin comes purely from you. The speed develops quickly within the sphere, producing strong resistance, which is equally effective for impact-free recovery, as it is for isometric arm strengthening, all the way from the finger to the shoulder.
Remember, the faster the rotor spins, the greater the resistance and intensity created for your fingers, hands, wrists, and shoulders.
Available in various colors - random color shipped.
The package includes:
Weight: 228 grams.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.