MIGHTY MATS are loaded with anti-microbial neutralizer that keeps bacteria and odors from forming. The top of the mat is comprised of a thin layer of polypropylene fibers. During heavier usage, droplets of urine readily disperse across the mat, activating more of the anti-microbial neutralizer, and then evaporating into the air, keeping the mat relatively dry. The mat bottom is covered in a rubber backing to keep it in place. MIGHTY MATS are totally disposable. Just roll them up and discard in the trash. Also ideal for floor protection in any waste area.