The edge of the mat is beveled for optimum safety and the surface is so easy to clean that it's virtually maintenance-free!Overall Dimensions:Length: 4'Width: 3'Thickness: 3/4in.2300M-34 Walrus Hide 3' x 4' Black Anti-Fatigue Floor Mat - 3/4in Thick A fantastic addition to work stations cashier stations behind counters and in a wide variety of other commercial and industrial locations this 3/4in thick mat is made of closed cell sponge with a durable anti-slip coating to help prevent slips and falls while also providing employees with an extremely comfortable place to stand during even the longest shifts.