Place NOTRAX Opera 3-in-1 Entrance Mats inside heavy-traffic entrances. Zone 1 Scrape: polypropylene twist loop fibers. Zone 2 Scrape and Dry: polypropylene fibers and absorbent Decalon™ yarns. Zone 3 Dry: absorbent Decalon™ yarns. 5/16" thick. Your shoes will be completely dry by the time you reach the end of this unique entrance mat. Maximum performance unit combines three mats into one. Zone 1 is made of very rough polypropylene twist loop fibers that provide excellent scraping action to remove dirt and debris. Striped Zone 2 combines polypropylene fibers and Decalon™ yarns that scrape dirt and absorb moisture. Finally Zone 3, made of cut pile Decalon™ yarns, dries any residual moisture. Thick vinyl backing keeps mat in place. Made in USA.