Lighted Wrist Ball Multifunctional Power Wrists Hand Strengthener Luminous Sports Exercises Fitness Wrist Device Muscle Relex 

Quality characteristics
1. The ball center is corrected by computer balance, with high stability

2. Special plastic materials are durable

3. The steel shaft is not easy to break

4. The ball shell is covered with high-grade silicone rubber anti-skid ring, exquisite and beautiful


 Precautions:

1 Wrist force ball is a kind of more precise sports equipment, and it must be careful not to fall when using.
2 When using it, avoid foreign objects entering the ball.
3 When the wrist ball rotates at high speed, do not touch the inner ball with your fingers to prevent finger scratches.
4 Do not throw the ball moving at high speed towards the human body to prevent accidents.
 

 Principle: Use a gyroscope (eccentricity + inertial constant rate) Power: Rotate the wrist to generate power. No battery or plug-in rotation is required. The faster the kinetic energy is, the stronger it will be. The rotation speed can reach as high as 12,000 (R.P.M) revolutions per minute.
Function: enhance the grip, endurance, wrist strength, arm strength and other sharp weapons, and can promote blood circulation, strengthen the wrist ligaments to reduce sports injuries

Effect:

1. For those who like golf, bowling, baseball, basketball, volleyball, handball, tennis, badminton, kendo, etc .. Those who need to rely on the wrist can make you more powerful and powerful.
2. Those who are engaged in computer typing and piano playing to avoid ligament injury.
3. Workers who use their wrists more often need more practice.
4. Rehabilitation function and avoid muscle rigidity.

Advantages: The world's smallest and strongest kinetic energy ball is suitable for all ages and is not limited by space. It can be used anytime, anywhere in home activities such as watching TV, climbing mountains, outings, and car office.