Wrist & Arm Training Ball

ry on this new Wrist & Arm Training Ball! It's addictive, multi-facetted device that is rapidly spreading across the world into the hands of the young and old alike! PRODUCT FEATURES: Strengthens Hands and Grip Skills. This Wrist Ball is an effective tool to help you improve arms force. This product can strength grip skills, build muscle, tone arms and increase flexibility. Cool Illumination and High Quality. When you spin the LED lights inside, the ball will illuminate. Consists a freely revolving heavy gyroscopic rotor housed in a solid plastic shell, with a built-in self-powered LED lights. Improves your Sports Performance. This will give your hands, wrists and forearms a workout with resistance training. It can develop and shape your grip and forearm muscles to improve baseball, tennis, golf games and most sports. Build finger strength. Hold the gyro ball upside down using only your fingers. Gently make a stirring motion with your hand. This will provide a resi