Pen Plus Case W/Gel Pack (036765244335). A safe way to transport injectable medications that require cooling. Protects all your valuable supplies. Stylish, ergonomic design makes it the perfect case for men or women, as well as children, seniors and medical personnel. Can be attached to a belt, placed inside a purse or briefcase, or carried using the detachable hand strap. For vials or pens. Cools for hours.