• Self-Starting Function : The gyro ball features a self-starting function, allowing for immediate use and convenience. It's perfect for those who want to hit the ground running with their workout routine. • Gyroscopic Power : Equipped with gyroscopic power, this wrist ball provides a unique exercise experience that engages your arm and hand muscles, enhancing your grip strength and forearm endurance. • Strength Training Tool : As a strength training tool, it's designed to challenge your muscles, making it ideal for both beginners and seasoned fitness enthusiasts looking to take their workout to the next level. • Versatile Exercise Device : This versatile exercise device can be used anywhere, making it perfect for home gym users. Whether you're at the gym or on the go, this wrist ball allows you to keep up with your fitness routine. • Durable Material : Made in Mainland China, this gyro ball is crafted from durable materials ensuring long-lasting use and reliability, making it a worthwhile investment for your fitness needs. • Easy to Use : With its simple design and easy-to-use interface, this gyro ball is simple to use, making it an accessible tool for anyone looking to enhance their fitness routine. 1、Automatic start design, need to push the core in the direction of the arrow, start by the internal spring, very easy and convenient. 2、Without any strange vibrations, it can rotate for a long time without worrying about it stopping when moving. 3、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. 4、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. Product Description: Start: Automatic start Power: Generates a weight of up to 61 kg Size:7*7*5.5cm Function: Muscle relaxer Name: Wrist Ball Trainer Gyroscope Type: Sports Equipment Suitable for: multifunctional Gym, tennis, square, cycling and rock colling Products include： Wrist ball * 1 Wrist rope * 1 How to use the wrist ball Step 1: Take the gyro ball in your hand, rotate the core upwards, and use two thumbsRotate 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.