Six level massage ball, made of food grade silicone, safe and easy to clean. Gentle rounded head for comfortable massage, hexagonal design for deep massage. Place the ball on the myofascial trigger point area of the body that needs to be relaxed, and let the ball press against the area for 30 seconds to 60 seconds with the help of body pressure! You will feel the unexpected effect! Suitable for shoulder, back, legs, soles of feet and other multi-out massage and relaxation, activate the training area before exercise, relax the tense muscles after exercise.