Whether it's for use indoors or outdoors, this entrance mat will not only help the cleanliness of your establishment, but also provide a safety aspect with its superior non-slip properties. The charcoal mat is ribbed, removing dirt, grit and moisture from the underside of shoes, but it won't stain with any dirt and can be easily laundered to stay hygienic. Manufactured from durable polypropylene, the mat is 100% slip resistant.