From the manufacturer's website:
TheraBand® FlexBar® Hand Exerciser is a flexible, durable resistance device with a ridged surface for enhanced grip during use. It is used to improve grip strength and upper extremity stabilization by bending, twisting, or oscillation movement.
- Ideal for those suffering from tennis elbow pain, looking to increase flexibility and range of motion and to strengthen the elbow, wrist, forearm, and hand.
- Ridged design is easy to grip and twist for elbow, wrist, forearm and hand rehabilitation and strengthening, lateral epicondylitis therapy
- Great for musicians, painters and gardeners.
- Portable and convenient exercise, rehab, and injury prevention equipment.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.