... for 2-4-5mm 3mm, 8-9mm.Introduction and usage: Red Medical ball is a natural health healing stone ... aluminum, iodine resistance cardiovascular disease, etc. Mn, and diabetes, Magnesium, iron, copper and cobalt, molybdenum, sr can inhibit calculus formation, ... chronic gastritis, nephritis, hepatitis, urinary, diabetes, heart disease and premature beat, tracheitis, etc have certain curative effect. Red ...