Andersen Waterhog Eco Premier Fashion indoor/outdoor floor mat. Reinforced face nubs: face nubs are reinforced with rubber to resist crushing, maintaining high performance and extending product life. "Water Dam" border is designed to hold water and dirt on mat to minimize slip hazards and floor damage around perimeter of the mat. Raised nub surface: Removes and traps dirt and moisture and holds it on mat below shoe level so it is not tracked in. TriGrip backing: Gripping action minimizes movement on most carpets and improves traction on hard surfaces. Rubber backing: Lays flat, wont crack or curl like vinyl mats. Indoor/outdoor: durable PET polyester face suitable for indoor or outdoor use. 100 percent recycled PET polyester fiber system dries quickly preventing fading and rotting. Easy to clean: just vacuum or hose off and hang to dry. Colorfast: solution dyed for excellent light and wet fastness. Not adversely effected by salt or ice melt. Should not be used in areas exposed to animal fats (kitchens) or petroleum products. Passes Flammability Standard DOC-FF-1-70. Fiber type: solution-dyed recycled pet polyester, recycled from soda bottles. Weight: 30-ounces per square yard. Thickness: 3/8-inches. Design: diamond.