Andersen’s Masterpiece Select Entrance Mat is attractive and durable, making it a great choice for your office's lobby. The unique design of the textile rug allows for dirt and water to be wiped from shoes, no matter what angle the person walks across it. The dirt gets trapped in the grooves below shoe level, so guests won’t track soil from the mat onto your carpet or floors. The nubs are reinforced with molded rubber and won’t wear down or lose their shape. A rubber water dam around the edge of the mat holds up to 1 1/2 gallons of water and keeps moisture and dirt in the mat, not on your floors. Just vacuum or hose off the mat to clean and hang to dry. Choose from 18 sizes and six attractive colors. Listed size is approximate.