With its deep color, the NoTrax Aqua Trap Indoor Rug - Charcoal is an excellent choice for a bright, windowed lobby or entry. This rug is made of polypropylene and features a rubber backing with a cleat design to prevent slipping and carpet-to-the-edge design. The molded bubble pattern facilitates scraping and drying, and retains moisture and debris within its patented and invisible Aqua Dam border. Its anti-microbial carpet treatment keeps bacteria and germs at the entrance. At only 0.375 inches thick and with 26 ounces of tufted yarn per square yard, this mat has increased moisture retention. It is a recommended and approved product as part of the GreenTRAX program for "Green Cleaning" environments. Available in a variety of sizes, this rug is intended for commercial use.