Durability Feature: The muscle scraper tool is made of stainless steel and polished to a mirror finish. Compared to jade scraping tool, it has er strength and longer life. The unique shape provides better support for massaging different parts of your body.Function: The coolness of the metal feels soothing against the skin. Soft tissue massage tools are designed to help effectively treat adhesion and scars caused by surgery, injury and overuse of muscles, injury prevention and rapid recovery - use of double inclined edges, reduce muscle soreness after exercise, improve recovery time, and treat soft tissue injury..Systemic Care: The shape of this gua sha massage tool is the most convenient to use. It is designed for many areas of the body, such as the back, forearm and pectoral muscles. The side with larger radian can be used for arms, etc. and the side with smaller radian can be used for back and t s. It can be used by chiropractors, physiotherapists, occupational therapists, sports coaches..Usage: Muscle scraping tool can be used with body emulsion or massage oil to coat smooth edges on the smooth skin surface, 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.