M+A Matting 273 Waterhog Grand Classic Polypropylene Fiber Single End Entrance Indoor/Outdoor Floor Mat, SBR Rubber Backing, 5.5' Length x 3' Width, 3/8" Thick, Dark Brown Premium anti-static polypropylene fiber system dries quickly and wont fade or rot Colorfast: Solution dyed for excellent light and we fastness Unique ridged construction effectively stores dirt and moisture beneath shoe level Exclusive "Water Dam" border keeps dirt and water in the amt and off the floor, minimizing slip hazards and floor damage Should not be used in areas exposed to animal fats (kitchens) or petroleum products