Using: It can be used with body emulsion or massage oil on the smooth skin surface, then press hard down, and then move down muscles - so-called friction - gentle massage - or along the path of acupuncture meridians, along the skin. On the surface, gently massage about 4-6 inches at a time and repeating the action until the skin turns red..Systemic Care: The hole in the middle of this shape of massage tools is designed according to people's fingers, which conforms to the habit of most people's fingers holding. And this shape is designed for many areas of the body, such as the back, forearm, neck, calf and pectoral muscles. It can be used by most people, not just by masseurs or athletes..Function: Through the use of double oblique blade massage, reduce muscle pain after exercise, improve recovery time, and treat soft tissue injury. Soft tissue massage tools are designed to help effectively treat adhesion and scars caused by surgery, injury and overuse of muscles.. : the massage tool made of stainless steel, polished to the mirror surface, smooth and easy to clean, providing sensitive support for massage.