Health Benefits: Increases strength in fingers, wrists, hands, forearms, biceps, triceps, ligaments, and shoulders. At the same time, it can also be used in arm rehabilitation training, to restore the strength of the arm muscles.
New LED Design: The cool leds inside light up as you use them. It can pass the time and add fun while restoring sore muscles.
Easy To Use: Push the core in the direction of the arrow, start by the internal spring, the wrist grip the wrist force ball with the wrist force ball shake, this is very simple and convenient.
Take It With You: The lightweight design is portable and easy to use anywhere. You can use it as a toy to decompress and exercise your arm muscles.
