Pro Gyro Power Ball Arm Exerciser
Help your fingers, wrist, forearm and upper arm gain strength with the Gyro Wrist Training Ball!
This gyroscope-based workout tool is powered by rotating the wrist. The rhythmic movement of this training ball help maintains muscle tone. Designed with a high-performance rotor, which can speed up to 12,000 RPM.
It's the perfect exercise tool for people who play golf, tennis, cricket, badminton, baseball, bowling and more. It is also ideal for musicians, guitarists, pianists, and drummers. Aside from strengthening your wrist to your arm, it also helps in rehabilitating sore muscles and joints.