Stimulate blood circulation, adjust the function of entrails, strengthen immunity of human body. Eliminate tension, relax your body and mind, help to promote sleep. Easy to use, free space is limited, at any time can move both indoor and outdoor use. Specification: Color: As the picture shown Weight: 150g Size: 35x35cm(Length*Width) Notice: *Not fit for those people has the symptom of haemorrhage to use during the period of haemorrhage. Such as hemoptysis , have blood in their stool, hemorrhage stomach and intestine from womb, viscera etc. *Not fit for women at the period of menstruate and pregnancy. *Not fit for patients at the moving period of phthisis, patients at the unsteady state of acute myocardialinfarction, patients with serious kidney failure or serious heart failure. Please ask for doctor's advice for other serious illness.