EASY TO PLAY&CONTROLYou only need to push the core in the direction of the arrow, start by the internal spring, no rope,small and lightweight, easy to take, exercise anytime, anywhere. This new wrist ball is Auto-St - Gym, Fitness & Fighting sports
EASY TO PLAY&CONTROLYou only need to push the core in the direction of the arrow, start by the internal spring, no rope,small and lightweight, easy to take, exercise anytime, anywhere. This new wrist ball is Auto-St
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