The Myga Cork fascia balls are a powerful selfhealing tool. Perfect for enhancing joint movement and calming your nervous system. Our cork balls can help to prevent injury as well as stimulate blood circulation when there is tension in your muscles. Thanks to their small surface, the massage pressure penetrates deep into the tissue and loosens even the most stubborn trigger points. Use our massage balls in yoga, Pilates, and other body workout such as CrossFit, HIIT and running. Comes with a practical drawstring carry bag made of cotton. Material: 100% Cork You can pick 2 different sizes. Option 1 Recommended body area for the 5cm ball (Golf ball size): A favourite for hands, feet, calves, forearms, neck, and smaller muscles. Excellent for pointpoint / localised release. Option 2 Recommended body area for the 10cm ball (Softball size): Calves/Upper Legs/Outer and inner thighs/Hamstrings/Glutes/Back/Shoulders/Upper and Lower Back