The WaterHog Classic 4' x 6' Mat is a durable, stain-resistant mat with a unique bi-level design that traps dirt and moisture, keeping your floors clean, dry, and safe. The bi-level surface effectively scrapes dirt and moisture from shoes, trapping it beneath shoe level to prevent tracking. The water dam border holds moisture keeping it off your floors. WaterHog mats can hold up to 1.5 gallons of water per square yard. Reinforced rubber nubs prevent pile from crushing and extend the performance life of the mat. The solution-dyed polypropylene fabric is resistant to staining, dries quickly, and will not fade or rot. Beveled edges provide a safe transition from floor to mat. This mat features a 78-mil SBR rubber cleated backing for placement on carpet.