Anyone who has stood on a hard concrete floor for longer than a few minutes will tell you how hard the surface can be on your feet, knees, and back. Reduce the fatigue and soreness with the AmeriHome 2 ft. x 3 ft. Anti-Fatigue Bubble Rubber Entry Mat. Solid rubber construction, with a 1/2 inch thick cushion reduces fatigue without creating a tripping hazard, and the non-slip surface gives you more traction when dirt, grease and other liquids get spilled. Just spray it clean with a hose or power washer when it gets dirty.