The Massage Blocks Twin Block is an ideal way to get sub-occipital release without the help of a partner or therapist. Using your own body weight, the tool delivers deep, soft tissue massage to work out knots, stress and trigger points. When used properly, it can relieve tension in the muscles commonly associated with nagging headaches - relieving pain before it has a chance to take hold. Although specifically designed to release muscles tension at the base of the skull, neck and shoulders, it’s also great for targeting every part of the body. The Twin Block is one of the most versatile and portable self-massage devices on the market today AND it will never go flat!