Crown Needle-Rib Wiper/Scraper Mat, Polypropylene, 36 x 48, Charcoal - Keep those unwanted guests—dirt and moisture—off the invite list by using Needle-Rib wiper/scraper mats. Rugged grooves and ribbed polypropylene needle fibers trap and hide dirt before it enters your building or office. Beveled edges reduce the risk of tripping, while a vinyl backing helps keep mat in place. Wear-resistant, color-fast design for light- to medium-traffic areas. For indoor use. Total Confidence Warranty.