Box Size: 19.3in * 8.7in * 2.8in ( 490mm * 220mm * 70mm ) Packing List: 5pcs stainless steel gua sha tools, a suitcase IASTM: IASTM aka “ Instrument Assisted Soft Tissue Mobilization ” , is a manual therapy approach to musculoskeletal injuries using specifically designed tools. The most effective material for IASTM is stainless steel. Our tools will assist medical doctors, osteopathic doctors, chiropractors, physical therapists, physical therapy assistants, occupational therapists, athletic trainers, massage therapists, acupuncturists, and others to effectively treat patients with less fatigue to the practitioner. The medical grade stainless steel, polished to a mirror- like finish, allows the use of topical solutions to be used without any risk or damage the tools. This will enable the practitioner to create a controlled inflammatory process, which will allow the tissue to begin the healing process, breaking down scar tissue / adhesions in the troubled area, and accelerate the recovery process. About gua sha: Gua sha ( Chinese : 刮痧 ) is a traditional Chinese medical treatment in which the skin is scraped to produce light petechiae. Practitioners believe that gua sha releases unhealthy bodily matter from blood stasis within sored, tired, stiff or injured muscle areas to stimulate new oxygenated blood flow to the areas, thus promotes metabolic cell repair, regeneration, healing and recovery. Gua sha is a natural, alternative therapy that involves scraping your skin with a massage tool to improve your circulation. Gua sha is intended to address stagnant energy, called chi, in the body that practitioners believe may be responsible for inflammation. Inflammation is the underlying cause of several conditions associated with chronic pain. Rubbing the skin’s surface is thought to help break up this energy, reduce inflammation, and promote healing.