Leave the dirt and moisture at the doorMade from high-quality, heavy-duty rubber for long life. Thousands of buoyant, resilient rubber bristles are molded into the mat, providing an anti-fatigue quality. Mat has a thickness of 3/8".Flexible and sturdy, the bristles brush off mud, slush, rain and snow from shoes, collecting it at the base of the mat away from traffic. Slip-resistant base helps keep the mat in position; beveled corners help prevent tripping.To clean, simply turn the mat over and shake out, or hose off. Overall dimensions:57713: 24W x 32"L 57710: 32W x 39"L57711: 36W x 72"L