AirFlex's comfortable, functional dome design provides excellent relief from back and leg stress. Launderable and highly chemical-resistant nitrile rubber backing provides excellent cushion during use, maximum durability and longer life service. AirFlex's solution-dyed polypropylene surface means exceptional stain-resistance and ease-of-maintenance. Perfect for retail or commercial applications and available for work in wet or dry environments. Rounded corners and fashionable colors add the finishing touches to this attractive, high-performance anti-fatigue mat. Launderable and highly chemical resistant nitrile rubber backing provides excellent cushion during use, giving maximum durability and longer surface life. Rubber Type: 100 percent Nitrile Rubber (20 percent recycled content). 7/64" thickness throughout body of mat. Testing: Passes Flammability Standard DOC-FF-1-70. Cobalt Blue color. Measures 3' length by 2' width.