Needle-Rib is our economical ribbed-pattern solution for low traffic entrances. As a wiper/scraper, Needle-Rib will get rid of the dirt while retaining water so fewer contaminants enter the building. Unilateral ribbed pattern on vinyl backing that traps moisture and protects floors. Quick drying and fade resistant. Retains moisture for increased cleaning efficiency. Surface made from 50% P.E.T. recycled fiber. 4' x 6' Charcoal 1 each