Hand Strengthener Full Metal Power Wrist Ball Forearm Muscle Training Gyroscopic Ball Mute Metal PowerBall Gym Exerciser
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Description
Auto-Start Strengthen Full Metal Power Wrist Ball Forearm Muscle Training Gyroscopic Ball Mute Metal PowerBall Gym Exerciser F1051
1. Press the ball core gently with your thumb and push it 2-3 times in the direction of the arrow until it cannot be pushed.
2. Let go of the ball with your thumb and run the ball in one hand
3. When you feel the centrifugal force of the ball core, swing your wrist from side to side or move in circles to turn the wrist ball. The intensity can be adjusted freely
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