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

Benefits of the wrist ball
1. Wrist ball is good for warming up your hands, wrists, shoulders, forearms, biceps and upper limbs
2. If you use the computer or play the piano for a long time, you can play this ball for a few minutes every day, which will make your hands feel less painful
3. Wrist ball hand grip enhancer, hand grip exerciser, relieve stress, suitable for the elderly, nursing, treatment, and rehabilitation personnel: in fact, the gyro ball will not bear too much burden
Can improve blood circulation on the fingers and prevent nerve damage
How to use the wrist ball
Step 1: Take the gyro ball in your hand, rotate the core upwards, and use two thumbs
Rotate the rotor again and again until it reaches the corresponding elastic core position in the direction of the arrow.
Step 2: Hold the wrist ball tightly, then immediately release your finger from the spinner, the spinner will Run at a speed of 1500 to 3000 rpm. At the same time, slowly lower your palm while rotating your wrist Get the power to maintain the existing gyro ball or higher than the starting speed.
Step 3: As you gradually increase your core speed, you will feel the same synchronously increasing reaction force rotating gyroscope on your wrist and arm.
Note: Do not place it vertically when starting, otherwise it will cause invalid push.

Automatic start design, need to push the core in the direction of the arrow, start by the internal spring, very easy and convenient.
When it rotates, the cool colored lights inside will light up. It can kill time and add fun while restoring muscle soreness.
Without any strange vibrations, it can rotate for a long time without worrying about it stopping when moving.
The convenient design can be carried anywhere, whether in the office, gym or at home, it can be used as a toy to decompress at any time, and it can also exercise arm muscles.
Wrist ball can promote blood circulation and increase the strength of fingers, wrists, hands, forearms, biceps, triceps and ligaments and shoulders, and restore muscle strength.