Seracult® Plus Rapid Test Kit, Fecal Occult Blood Test (FOBT), 1 Box of 100 Jobst Ulcercare Highest level of discreetness and Autoclavable Up to 325 Highest level of discreetness and comfort provided by odor barrier Good2Go Large 12 x 16 * Plush multi ply cover design focuses moist heat right where you need it most * Joint specific or multi use shapes for a snug secure fit * Portability convenience and economy in a reusable unit that will last for years * Patented non allergenic fill does not leak smell decay or encourage fungus growth * Fill has a special porous surface to trap the maximum amount of atmospheric moisture * Wide elastic strap holds heat snugly in place while you continue regular activities * Mitt is filled with two soft gel packs that can be heated or frozen as needed to surround your hand with either hot or cold therapy If the stool sample contains occult blood the hemoglobin from the blood will react with the impregnated guaiac and the developer to produce a blue color within 30 to 60 seconds after the application of the developer