CROWN MATS & MATTING-MAT,FLOOR,CUSHION,3X5',BK. Cushion-Step Mat, Rubber, 36 x 60, Marbleized Black. When the job calls for spending a lot of time on your feet, it helps if you're on a comfortable surface. The marbleized rubber top fused to thick sponge foam helps relieve some of the discomfort of standing for extended periods of time. Features beveled edges and rounded corners to keep mat flat and help avoid dangerous falls. Mat Type: Anti-Fatigue Mat; Application: Indoor; Material(s): Rubber; Style: N/A.