FUGEST Wrist Trainer Exercises Push-Start Force Ball with LED Lighting & Speed Meter Wrist Power Arm Exercise Gyroscope

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Strengthen fingers, wrists, hands, forearms, shoulders and bicep etc., and also be beneficial in promoting co-ordination and blood circulation.
Especially suitable for office workers, students, rock climbers bowling ball exerciser
Exercise with powerball is completely equidistant, so it can complement any training method. Powerball exercises the arms in a way that conventional isotonic (free weight) exercise training cannot achieve, and it can absorb a higher percentage of muscle fibers in a shorter time. If you want to improve your wrist, grip and arm strength, then the wrist training ball will be your perfect choice!
Small, compact and transportable, you can take it anywhere. And we have a flashing LED style, all you need to do is increase your speed by making a rotating wrist motion and keep in sync with the spin of the ball.
It certainly requires some fine motor skills to use it. The dominant hand/arm was easily able to keep the gyro ball going, which will help refine their fine motor skills in that non-dominant hand/arm.
The unit did not have any strange vibrations to it. Also having the silicone grip section is really nice as it helps with the gyro not coming loose from your hand. You can attach it to a wrist strap if you’re really worried about the gyro flying away.