The invention can effectively massage and knead various parts of the body, and when used in combination with essential oil, it can effectively open channels and collaterals, promote blood circulation, and has the functions of eliminating dampness and reducing swelling. Moreover, it is designed in combination with the curvature of the human body, which is very convenient to use. It adopts the way of double-sided slotting, which is dull inside and beneficial outside. Its concave surface and convex surface can be used, and it is a good tool for health care and treatment.