LED Wrist Ball Gyroscope, Wrist Power Gyro Ball, Wrist Strengthener and Forearm Exercise, for Stronger Muscle (Color : Black)

☞[Material]: Zinc alloy electroplated core, moderate weight, high stability and will not crack, without losing the feel of both at the same time, both aesthetic and durable. There is no need for power supply for mechanical power.
☞[Eye-catching design]: With the novel design of LED lights, you can see how fast the rotation speed is. When rotating, the LED lights up. The faster the rotation, the brighter the LED light, as long as it rotates, it will remain lit, set sports, fun, fitness in one,The light will only illuminate when your speed is fast enough.
☞[Easily to Carry]: The exercise wrist ball is lightweight, with a compact and convenient, saving lots of space. you can easily put it on your body for use anywhere, such as home, office, gym,outdoor etc.