The Myga peanut shaped fascia ball can be used crosswise and lengthwise on most parts of the body. The cork peanut is perfect for self-massage and reaches areas that you can't reach with your hands, such as your back. The middle groove of the peanut bypasses the spine to ensure that only the muscles are massaged. This environmentally friendly alternative to plastic is made from cork to reduce pain and tension and to stimulate blood circulation. Recommended body areas: shoulder/neck/chest/feet/calf/lower legs/middle and lower back Comes with a handy cotton drawstring tote.