The Powerball is a gyroscopic hand trainer for strengthening your arm muscles, wrists and fingers as well as improving muscle endurance, grip, coordination and blood circulation.
- Gives your arm muscles a workout and improves your grip and coordination
- Adapts to suit your level of ability
- Powerball Auto Start: with rotor for easy start up
- Perfect for golfers, basketball players, climbers, rowers etc.
- Up to 16,000 rotations per minute
The Powerball – for unique and effective hand training
The powerball is a gyroscopic hand trainer which works without any batteries using the gyroscopic force: the ball rotates using muscle strength. This means that the ball always adapts to suit your level of ability. With practice you can reach up to 16,000 rotations per minute. Depending on how you hold the hand trainer, you can strengthen different muscles. The Powerball Auto Start is also fitted with a rotor which allows it to be started easily without a power supply. Even beginners won't find it too difficult at the start.
- approx. 250 g
- Plastic, rubber edges
- ø approx. 7.5 cm
The Powerball with the gyroscopic effect
Rotating balls, also known as Powerballs work using the gyroscopic force. They consist of a rotor which is mounted to a lead within the outer shell. Twisting motions get the ball moving and angular momentum occurs about the axis. At the same time, the ball becomes stabilised by the speed of the rotation and the inertial moment itself. Twisting the hand trainer causes the rotational axis to be tipped and the rotor tries to realign itself again by moving back. This makes the rotor faster and faster. There are gyroscopic forces that the user works against. With both versions, you can strengthen your deep muscles, fingers, wrists, lower arms and upper arms. Also improves your blood circulation in your brain, your stamina, grip and coordination.
Be impressed by this effective hand trainer and enjoy the feeling – order the Powerball from Sport-Thieme now.