The unique flexing action of this heavy-duty mat cushions your feet as you stand for any length of time. Place it next to your garage or basement tool bench or outdoors in front of your grill. Anti-fatigue mat cushions feet and reduces stress on lower body. Ideal for garage, utility room or outdoor grill area. Made of durable polypropylene in grey. Unique raised domes flex as you stand on them, offering comfort and resilience, then bounce back to original shape. Traps dirt and moisture below shoe level, so they're not tracked into your home. Slip-resistant rubber backing made with 20% post-consumer recycled rubber. Safe for wet and dry environments.