This hand-crafted Gua Sha tool is carved from responsibly sourced 100% Natural Bian Stone. Bian stone is an ancient health tool revered in Eastern Medicine for its unique healing properties. There are more than thirty trace elements within the stone, which promote anti-aging and antioxidant effects when swept along the surface of the body. It has distinct curves and ridges, perfect for facial Gua Sha and whole-body acupressure massage.