Roller Ball Exerciser - Grip, Wrist & Forearm Strengthening

The OPC Health Roller Ball Exerciser is a dynamic, oscillating hand exerciser designed to develop grip, wrist and forearm strength. This tennis ball-sized device uses an internal gyroscope to create resistance as you rotate your wrist, with no batteries required.

Features

• Internal gyroscope spins at up to 8,000 rpm.
• Provides up to 12kg of torque resistance.
• Tennis ball-sized design held in the hand during exercise.
• Designed to strengthen the wrists, biceps, triceps and deltoids.
• Battery-free operation.

Suitable For

• Developing grip, wrist and forearm strength.
• Improving grip for tennis, golf and other sports.
• Resistance exercise for the wrists and upper-arm muscles.

How to Use

Hold the roller ball exerciser and rotate your wrist to make the internal gyroscope spin and generate resistance.