The instrument was comprised of two parts connected by a length of cord: a sealed nickel-plated brass cylinder dubbed the polizer, filled with “a composition, the nature of which is not made known to the public,” and an elastic strap with a buckle and a small metal disk attached. The elastic band would be placed around the wrist or ankle with the metal disk flush against the skin. The polizer, meanwhile, would be placed in a bucket (or other suitable container) of cold water or ice. Then, through the mysteries of “Diaduction” (a force Dr. Hercules claimed to have discovered, and which he insisted on capitalizing), the device would draw healing oxygen (the vitalizer of the blood) from the water and force it into the user’s system. The claim held that this resulted in “burning out all manner of poisonous impurities” among other things, and would therefore cure everything from indigestion to tuberculosis, as well as “nervous prostration” and other “female weaknesses."