"The BedRug Impact Mat is designed specifically for trucks that have an existing spray-in liner or no bed liner. The all new design has an integrated tailgate gap guard hinge that connects the bed piece to the tailgate piece. The TPO composite top layer construction offers a flat work surface, that is slip and skid resistant. The ¾"" padded under layer provide dent and impact resistance while offering cushion for your knees while crawling around in your truck bed. The Impact Mat installs in minutes using hook and loop fasteners to install without the need to prep, sand or drill holes into your truck bed. The Impact Mat is made to fit your specific make and model, filling in the ribs and contours of the truck bed to provide a smooth, void free loading surface. The integrated tailgate hinge covers the gap between your truck bed and the tailgate, this will eliminate the annoying build-up of debris between the two pieces. | BedRug Impact Bed Mat IMB15SBS"