Bedrug 1511121 BedTred Pro Series Truck Bed Liner TPO composite surface no sanding, no prepping and no damage installation Hassle free quick and easy hook and loop install custom contoured fitment for a snug tight finish Heavy duty 1/4 inch closed cell textured anti-skid surface Thick foam layer provides superior dent protection cushioned knee-friendly surface Non-woven fiber backing will not scratch truck bed