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Wrist Trainer Ball Auto-Start Gyroscopic Forearm Exerciser Gyro Ball for Strengthen Arms, Fingers, Bones and Muscles

Original price was: $16.80.Current price is: $10.69.

Nice Wrist Trainer Ball Auto-Start Gyroscopic Forearm Exerciser Gyro Ball for Strengthen Arms, Fingers, Bones and Muscles Everyday Low Prices

814 in stock

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Wrist Trainer Ball Auto-Start Gyroscopic Forearm Exerciser Gyro Ball for Strengthen Arms, Fingers, Bones and Muscles

  • Product includes: JIN BD Black Diamond Gyro Ball (non-LED version), brand card, pouch, safety rope, user manual, and gift box.
  • Automatic start: The upgraded version uses a built-in pre-tensioner to start, and no starting rope is required. Press the inner ball with your thumb and move your thumb in the direction of the arrow to start the internal spring. The working principle is simple and environmentally friendly. By rotating the wrist, the ball core rotates at high speed, generating centrifugal force, so that the wrist feels a certain resistance
  • Suitable for assisting: Long-term use of computers or mobile phones, carpal tunnel syndrome, repetitive stress injuries, etc. are more common. By continuously and indirectly strengthening the muscles and flexibility of the forearm and wrist joints, it can significantly improve muscle strength, flexibility, and promote blood 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.
  • Exquisite Design: The Powerball can be carried anywhere, whether in the office, gym or at home, it can be used as a toy to relieve stress at any time, and it can also exercise finger grip strength training.
  • A chic gift: The gyro ball is a great gift for children who love sports, restless middle-aged people and people who work in the office for a long time, guitarists, pianists and other musicians
  • Quality Assurance: JIN BD Torsion Ball is rigorously tested by factory machines, warehouse inspections, and manual re-inspections. This product does not require battery power. Wrist rotation interacts with the internal ball core to generate centrifugal force to maintain efficient rotation. The faster the rotation speed, the greater the force generated.
  • Tips: If the wrist strength ball you received cannot start smoothly or work properly, please contact us in time, we will help you solve the problem and teach you how to use it correctly.

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