... mineralized balls:applied to a series of inorganic compoud Maifan Stone Ball 1) These balls are nontoxic to human and ... body, and can be effectively absorbed by human body. ProductMaifan stone ceramic ballItem No.DK-H Sizedia. 2 - 15mm (or ... as your request) Main ingredientskieselguhr, Maifan stone, anti-bacterial material Functionmineralization, anti-bacterium, activation, easy to be ...