The Muscle Relaxation Training Posture is designed to help improve your posture and alleviate back pain. It is specifically designed for use on your back and originates from Mainland China. This unisex fitness equipment is perfect for anyone looking to improve their posture and alleviate discomfort. It is easy to use, and its unique design ensures maximum comfort and effectiveness. Don't let poor posture hold you back any longer - try the Muscle Relaxation Training Posture today!