Силовой мяч Yunmai

This is a gyroscopic ball that strengthens wrists and tendons by using the centrifugal force generated by the force of the hand. It's great for people who play intense sports, but also as an anti-stress device.

Wrist Ball is a device that will help you in your daily workout by strengthening your wrists. The device was designed by NASA to allow astronauts to train in zero gravity, and now Yunmai is making it available to you!

His operation is very simple: it is basically a ball, rotating inside another ball. The Yunmai Powerball works on the principle of a gyroscope, which uses rotation and inertia to train your arms, shoulders and wrists. The workout involves keeping the ball in constant motion, which requires your strength and the endurance of your muscles.

To train with Powerball you don't need anything else. It is suitable for everyone, strengthening all muscles even those we are not aware of. Its primary function is to prevent tendon and joint damage, which tennis players, golfers, guitarists and pianists in particular suffer from. It is also a good exercise for people who spend a lot of time at the computer.

To start the Yunmai Powerball Inertia Generator, all you have to do is pull the cord. Once it is activated, you need to move your hand vigorously to make the LED lights start up and glow. If you keep them lit, it will indicate that your workout is going well. The Powerball is capable of speeds as high as 20,000 revolutions per minute.

Don't worry about your device slipping from your hand. You'll gain confidence in your grip with the Powerball's rubber surface so your workout doesn't end too soon.