Super Berber High Traffic Charcoal 6' x 10' Anti-Slip Oversized Outdoor Walk-Off Mat High-low hobnail surface pattern is aggressive on cleaning shoes. Super Berber Entrance Mats have a coarse, solution-dyed fiber surface, which effectively cleans moisture and dirt from shoes and hide the appearance of walking patterns. UV-stabilizers make these entrance mats resistant to fading and remain fast drying. These entrance mats feature a heavy-duty rubber backing and beveled border around all edges to prevent slipping.