Durable polypropylene construction with deep grooves captures dirt, mud, sand and moisture to protect floors. Weather-resistant design withstands sun, rain and snow for reliable outdoor and indoor use. Natural rubber non-slip backing provides strong grip, tear resistance and low odor. Easy to clean — vacuum, sweep, shake, or rinse with a garden hose and air dry. Combo pack includes two sizes for flexible placement — ideal for front doors, entryways, patios, garages, lobbies and offices.