The Davinci Tool Soft Trigger Point Occipital Massager is a versatile self massage tool that helps relieve headache pain and soothe sore muscles. Easy to use. Relieves stress, muscle spasms, and trigger points. Place the tool at the base of skull. Lie back and relax. Adjust the position of the tool until effective. Position the tool anywhere there is tension, muscle spasms or soreness and lie back and relax. Let the tool do the work for you. Each side of the tool has a different application.