The Gua Sha Tool is a massage instrument that will help improve your circulation. This ancient Chinese healing tool may offer a unique approach to better health. Apply a good amount of oil, and then use the Gua Sha Tool to repeatedly rub your skin. Rubbing the skin's surface with this instrument is thought to help reduce inflammation, pain and promote healing. It's also a highly recommended took to reduce wrinkles and facial expressions. The Gua Sha Tool is used to perform on a person's back, buttocks, neck, arms, legs and gently on the face and neck.