stainless steel gua sha scraping massage tool - stickon iastm tools great soft tissue mobilization tool (b shape) stickon <b>the most effective whole body deep massage</b><br>a technique that offers you its benefits in an instant as you will immediately be relieved from muscle pain, headaches and chronic back, shoulder or neck pain. by activating trigger points, the gua sha boards can work some magic and ease digestive disorders, dizziness and other ailments.