Millennium's Guardian Waterguard Entrance Mats are the perfect choice for high traffic areas like the front entrance to an office or store. Bi-level construction traps dirt and water in the base of the mat and off your floors. Carpet ridges scrape dirt, debris and water off shoes and are reinforced with rubber, keeping the scraping tips strong enough to handle a large volume of foot traffic. Cleated rubber backing keeps the mats stable and aerates moisture. To clean, just vacuum or hose off and hang dry. NFSI (National Floor Safety Institute) certified. Available in a variety of colors to match your décor. Listed size is approximate.