• Multifunctional design can be used in office, gym or home, and also can be a good pressure reducer as well as a good toy and arm muscle exercising
• Smart gravity sensor can be used to feel the centrifugal force and to strengthen your limbs coordination or rehabilitation training
• Simple operation can be powered on quickly by rotating your wrist to make fast speed
• Compact size can be put in your bags to do outdoor activities
• High-quality zinc alloy and plastic materials, durable and non-toxic
1. Please push it slowly in the direction of the arrow 8 times, then gradually shake your wrist and use the centrifugal principle to rotate the ball.
2. When the ball is spinning, please do not block the rotation with your hands or objects. It is recommended to let the ball stop naturally.
3. Please don't let the ball fall or collide strongly, because this will damage the ball core.