كرة تدريب المعصم LED لبدء التشغيل التلقائي لتقوية المعصم جيروسكوبي لتمرين الساعد كرة جيروسكوبية لتقوية أصابع الذراعين وعظام المعصم والعضلات (أسود)

Push the center of the ball to accumulate strength, rotate the ball and wrist, and you can feel the powerful centrifugal force. It is also suitable for women., The metal core of the enhanced wrist ball adopts an integrated turning molding process and strengthens the spring design, which can reduce the friction between the core and the guide rail, making it smoother, quieter and faster., Equipped with high-grade silicone rubber anti-slip ring. It helps the gyro ball not let go of your hand. Not only training equipment, colorful lights are also children's toys., Wrist and hand exercise Gyro ball can exercise and strengthen the joints, ligaments and muscles of the hand, wrist and forearm. Especially suitable for office workers, students, rock climbers, tennis, bowling, and badminton trainers., Use your thumb to push the metal core in the direction of the arrow until the force is accumulated. Release and turn to hold with one hand. Rotate your wrist in the direction of the ball's centrifugal force for 3-10 minutes each time., The lightweight design is portable and easy to use anywhere. Mechanical design, no power supply required. Whether in the office, gym, or at home, it can be used as a stress-relieving toy at any time and can also exercise arm muscles.