GELASGO Gyro Ball, Auto-Start Wrist Power Gyroscopic Ball for Wrist Strengthener Grip Strengthener with 5 Colors Led Lights
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☞[Material]: Zinc alloy electroplated core, moderate weight, high stability and will not crack, without losing the feel of both at the same time, both
LED Wrist Ball Gyroscope, Wrist Power Gyro Ball, Wrist Strengthener and Forearm Exercise, for Stronger Muscle (Color : Black)
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Features: Exercise with powerball is completely equidistant, so it can complement any training method. Powerball exercises the arms in a way that conventional isotonic (free weight) exercise training cannot achieve, and it can absorb a higher percentage of muscle fibers in a shorter time.
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