Cushion-Step CU 3660GY Marbleized Rubber Ideal for job that require a lot of standing. Beveled edges, rounded corners keep mat flat and help prevent falling. 3/32" thick marbleized rubber top fused to a 3/8" thick sponge foam. Beveled edges and rounded corners help keep mat flat. Puncture-resistant surface for better traction and stability Foam PVC sponge fused to smooth attractive marble-patterned surface Easy maintenance: sweep clean or damp mop Exclusive Fusion Technology permanently bonds two surfaces without use of glues or adhesives Use: Medium to heavy duty