Massage Ball Yoga Massage Roller Relieving Muscle Tension Pressure Massaging Balls Fit For Trigger Point Treat Exercise Yoga. This massage ball is made of high-quality TEP material, comfortable to the touch, durable and wear-resistant. It can relax muscles, reduce body discomfort levels, improve range of motion, and rejuvenate all parts of the body for relaxation. The ball is portable and compact, with a diameter of only 4.5cm, making it easy to carry and use anywhere. It is suitable for relieving plantar fascia, tightness of hands, arms, legs, and feet, and is widely used in feet, legs, shoulders, and hands.