Griporbit is a self-starting wrist exercise ball with a zinc alloy ball center. It is described as a grip strength device for wrist exercise and stress relief.
The ball is self-starting and uses a gravity-ball design. Its listed materials are silicone and zinc alloy, with zinc alloy used for the ball center.
Why it works
The self-starting mechanism lets the ball begin rotating without an external starting action.
The zinc alloy ball center identifies the material used at the center of the device.
Specifications
Product type: Wrist exercise ball
Mechanism: Self-starting gravity ball
Material: Silicone
Ball center material: Zinc alloy
Common questions
What is this wrist exercise ball used for? It is described as a wrist exercise trainer and grip strength device, with stress relief also noted.
How does the ball start? It has a self-starting mechanism and a gravity-ball design.
