Jade Rectangle Shape Gua Sha ToolGenuine jade stone gua sha tool. Traditional slim rectangle shape. Popular with facial cosmetic treatments. The curative abilities of jade are based on the composition of its micro elements and low temperature physical properties. This cooling effect helps to balance and protect the bodys qi. Jade stone is an alternative to the traditional animal based gua sha tools like bones and horns. Please note: each piece has a small hole where you can add