Bedrug 1513120 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