GUASHA-QUAR-02 Origin: Brazil Grade: A Dimensions: Approximately 80mm x 50mm Weight: Approximately 30g Origin: Brazil Grade: A = good Heart-shaped rose quartz Gua Sha of 80mm Patterns and colors may vary from one stone to another Gua Sha stones are used as massage tools primarily for the face. In Chinese, Gua Sha means "scrape" (gua) the "fever" – or the "illness" – (sha). The treatment involves gently stimulating points along the meridians to optimize blood and energy circulation through a technique of skin rubbing using a flat stone. Gua Sha has been practiced in traditional Chinese medicine for thousands of years.