| Warranty Description | half a year Manufacturer |
|---|---|
| Power Source | Self-Powered |
| Color | Black |
| Material | Plastic |
| Material Type | Plastic |
| Operation Mode | Manual |
| EU Spare Part Availability Duration | 10 Years |
| Included Components | sphere |
| UPC | 744110325775 |
Check the listing for details. Torque Ball Hand Exerciser, Grip Strength Trainer, Auto-Start, Forearm Strengthe. Color: Black, Condition: New. Listed at 15.99 USD. This wrist strength ball can be used to relax the wrist, significantly improve muscle strength and flexibility, and promote blood circulation. Use wrist, not forearm! The rotation of the wrist interacts with the internal ball core to generate centrifugal force, which can maintain the high-speed rotation of the ball core and feel the impact brought by high-speed rotation.
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