IMPHY Myofascial Release Massage Ball Spiral Ball Mini Hard Purple Stretch Calf Shoulder Lower Back Pain Relaxation [Genuine]

Patented double structure provides a stretching effect Registered design wave shape efficiently relieves muscle stiffness (Design Registration No. 1644428) The wave shape provides different stimulation to the fascia during pushing and pulling movements. The outer skin is made of soft material that is gentle on the skin and joints. For fascial care of medium and small muscles, around the shoulders, around the scapula, gluteus medius, piriformis, etc.