Exclusive "water dam" allows Waterhog(TM) Grand Classic to trap dirt and water in the mat and off of your floor-minimizing slip hazards and floor damage around the perimeter of the mat. Exclusive rubber-reinforced face nubs and "waffle" design provide crush proof scraping action. The mat has a durable 24-ounce fabric and shaped to be perfect entranceway mat. The durable, attractive fashion border makes it the perfect choice for indoor or outdoor applications. Environmentally friendly construction. 100% customer satisfaction guaranteed.