Keep those unwanted guestsdirt and moistureoff 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. Indoor/Outdoor: Indoor; Compatible Surface: Hard Floors; Mat Shape: Rectangular; Mat Surface: Ribbed.