Environmentally friendly. Polypropylene carpet mat and matching fabric border are solution-dyed to eliminate fading. Exclusive rubber reinforced, diamond face pattern prevents the carpet pile from crushing, extending the mat’s performance life. Rubber back minimizes movement. Choice of flat backing for smooth surfaces such as tile and wood, or a gripper backing for rough surfaces such as carpet and concrete. Unique ridged construction effectively removes and holds dirt and moisture below shoe level. 3/8" thick overall. Please specify your choice of color.