Gua Sha is an integral part of acupuncture and TCM-related techniques. Some of the tools listed here are for acupressure and deep tissue massage. Others are specific for Gua Sha techniques.
Gua means to scrape and Sha means redness or swelling. Therefore, Gua Sha techniques involve the use of instruments to apply pressure or scape the skin to promote the extravasation of blood and fluids to promote normal circulation and metabolic processes.
For an excellent book describing these techniques, we've included the book Gua Sha - A Traditional Technique for Modern Practice by Arya Nielsen in this section.