By activating circulation, massage techniques performed with a Gua Sha massage tool help to reduce discomforts due to heavy legs and swellings. Invented 2000 years ago in Asia, Gua Sha is a traditional massage technique consisting in performing stroking movement on skin with a stone-like massage tool to activate circulation. “Sha” traditionally meant “stagnant blood”. Made of composite of minerals, quartz & oxide of magnesium.