Opened for photography. This is an authentic rechargeable vibration massage ball born from the know-how of a fitness club. Powerful vibrations reach deep into the body, effectively relieving muscle stiffness and fatigue. Simply apply it to areas of concern such as the shoulders, neck, back, and soles of the feet for easy self-care. It's ideal for cool-downs after training and daily relaxation time. Supervised by a fitness club, rechargeable and convenient to carry. Relieves muscle stiffness with powerful vibrations. Full-body self-care. No noticeable scratches or stains, anonymous shipping. Renaissance Co., Ltd. Color: Black My family purchased this through mail order at the end of September 2025, but they haven't used it, so I am selling it.