Bi-level surface effectively scrapes dirt and moisture from shoes, trapping it beneath shoe level to prevent tracking Water dam border holds moisture keeping it off floors (WaterHog mats can hold up to 1 ½ gallons of water per square yard) Reinforced rubber nubs prevent pile from crushing and extend the performance life of the mat 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 Certified high-traction by the National Floor Safety Institute (NFSI) Rubber backing contains 20% post-consumer recycled rubber from car tires Attractive diamond pattern Available in 19 colors Feature 78-mil SBR rubber backing.