* Starting design: Use the thumb of both hands to push the movement in the direction of the arrow of the inner ball, began by the internal spring, no rope, no power supply, simple and environmentally friendly.
* Working principle: Through the rotation of the wrist to drive the ball core high-speed rotation. The centrifugal force generated by the rotation of the ball core causes the wrist to feel a certain resistance.
* Regulate power: By artificially controlling the rotation speed of the wrist, you’ll be able to adjust the rotation rhythm of the ball core and the generated force.
* Built-in LED light: When the wrist ball rotates quickly, the dazzling light will light up. Add fun to your workout.
* Suitable size: May also be carried anywhere, if it is in the office, the gym or at home, can all the time exercise tools, or a good stress reduction toy.
* Exercise: Wrist power ball can basically exercise the muscle groups of fingers, wrists, arms and other parts, including the strength and flexibility of forearm muscles, biceps, triceps and deltoid muscles.
* After-sales service: If you encounter any problems, please contact us through the Amazon message center, we will be able to give timely lend a hand and properly solve. Thank you for your enhance!
JIN BD Wrist Trainer Ball Auto-Start Wrist Strengthener Gyroscopic Forearm Exerciser Gyro Ball for Strengthen Arms, Fingers, Wrist Bones and Muscles
Amazon.com Price: $16.99 (as of 07/10/2024 22:53 PST- Details)
* Starting design: Use the thumb of both hands to push the movement in the direction of the arrow of the inner ball, started by the internal spring, no rope, no power supply, simple and environmentally friendly.
* Working principle: Through the rotation of the wrist to drive the ball core high-speed rotation. The centrifugal force generated by the rotation of the ball core causes the wrist to feel a certain resistance.
* Control power: By artificially controlling the rotation speed of the wrist, you can adjust the rotation rhythm of the ball core and the generated force.
| Item Package Dimensions L x W x H | |
|---|---|
| Package Weight | |
| Item Dimensions LxWxH | 3.15 x 3.15 x 2.36 inches |
| Item Weight | 331 Grams |
| Brand Name | JIN BD |
| Country of Origin | China |
| Color | Blue |
| Material | Silicone, Polycarbonate |
| Manufacturer | JIN BD |
| Part Number | 10000 |
| Style | Strength training ball |
| Outer Material | |
| Date First Available | May 10, 2021 |
| Brand | Visit the JIN BD Store |
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