Wrist ball gyroscope forearm trainer, Torque ball, power, automatic start wrist strengthener,

• The product includes: JIN BD Wrist ball(Black – No LED Light Version), brand card, ball bag, safety rope, finger skateboard, gift box
• Health Benefits: Arm Strength Ball improves blood circulation and strengthens fingers, wrists, hands, forearms, biceps, triceps, ligaments and shoulders
• Start-up Method: The upgraded version uses a built-in spring starter, with no pull cord needed. Simply press the inner ball with both thumbs and push forward until you feel resistance to start the spring. With wrist rotation, the rotor quickly generates centrifugal force, providing resistance to your wrist and forearm for an effective workout.
• Suitable for assisting: Long-term use of computers or mobile phones, carpal tunnel syndrome and repetitive stress injuries are common. By continuously and indirectly strengthening the muscles and flexibility of the forearm and wrist, it will significantly improve muscle strength, flexibility and promote vascular circulation.
• Suggested Reminder: If this is your first time using the product and you still have questions or difficulties after watching the built-in instructional video, please contact customer service promptly. Our support team will assist you in real time and provide the necessary help and support.
• Chic gift: Contains a gyro ball and a delicate finger skateboard, it is a great gift for children who love sports, middle-aged people who are restless and people who work in offices for a long time, guitarists, pianists and other musicians
• Quality Assurance: JIN BD torque ball has been tested by factory machines, warehouse inspection and manual re-inspection. The product does not require battery power. The wrist rotation interacts with the inner ball core to generate centrifugal force to maintain efficient rotation. The faster the speed, the greater the force generated.
• After-sales Guarantee: If the wrist gyro ball you received cannot start smoothly or operate normally, please contact us in time, we will help you solve the

Wrist ball gyroscope forearm trainer, Torque ball, power, automatic start wrist strengthener,