【Adjustable Vibration Levels】: Hand weights, 3 automatic strong vibration modes, 7 levels of vibration frequency can be freely changed, 3200 revolutions per minute, to train charming arms. 【Versatile Fitness Tool】: This multifunctional dumbbell combines traditional weight training with high frequency vibration, allowing it to be used as a fascia device for muscle relaxation or for burning exercises.
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