M+A Matting 2202 Enviro Plus PET Polyester Fiber Diamond Weave Interior/Wiper Floor Mat, Crumb Rubber Backing, 4' Length x 3' Width, 1/4" Thick, Southern Pine Backing is post-consumer recycled tires and EPDM Effective as a wiper mat in entryways Also for floor protection and spill control at water fountains, break areas, food counters, hallways, labs and more Smooth backing only Recycled content is 89 percent of total product weight