4pcs Gyro Ball Wrist Exerciser, Forearm Trainer, Gyroscopic Ball, TorqueBall, PowerBall for Stronger Arms, Wrists and Fingers with LED Lights

• 3 Vibrant Colors: This pack includes 4 Gyro Balls, 1 red, 1 blue, and 2 black, adding fun and variety to your workout.
• Auto-Start Feature: Equipped with an auto-start mechanism, these Gyro Balls are easy to use, allowing you to start your exercise routine instantly.
• Adjustable Training Intensity: Control your training level by adjusting the rotating speed, providing a customized workout experience suitable for all fitness levels.
• Colorful LED Indicators: These 4 Gyro Balls have built-in colorful LED lights that illuminate when Rotate. One of the black Gyro Balls, changes the color of its LED lights based on the rotating speed, giving a visual feedback of your performance.
• Enhances Strength and Grip: Perfect for strengthening muscles and joints, these Gyro Balls improve hand grip, making them ideal for athletes, musicians, and anyone looking to boost their hand and forearm strength.