This is a fancy wrist training ball trainer with mechanical auto starter, no power needed and safe using. LED light up when it under the motion.
Wrist ball is a fun and small compact exercise machine, you can bring it to anywhere. It increases strength in fingers, wrists, hands, forearms, biceps, triceps, ligament and shoulders. A great exercise machine for musicians, typists and sports enthusiasts, and the gyro wrist exercise ball brings gentle and impact-free relief to carpal tunnel syndrome, repetitive strain, tendinitis, arthritis and all wrist-related diseases.
- How to use: Follow the arrow to push the bottom and then release.
- Features: Self-starting design, no batteries, sustainable and safe. Compact size, one hand can easily grasp. Wrist strap design, can prevent the ball from flying out of the hand due to excessive force.
- Materials: It is made from alloy steel, is durable to use.
- Size: The length of the product is 7 cm, the width is 7 cm and the thickness is 5.5 cm.
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