CWNCU3672BK Rubber Cushion-Step Mat- Marbleized Black Features When the job calls for spending a lot of time on your feet, it helps if you re on a comfortable surface. The 3a?32 in. thick marbleized rubber top fused to thick sponge foam helps relieve some of the discomfort of standing for extended periods of time. Beveled edges and rounded corners to keep mat flat and help avoid dangerous falls. Color - Black Size - 3 x 6 ft.