Mopars Skid Resistor (2xs more skid resistance) and premium quality Under-the-Rail Bed Liners and Tailgate Covers are custom tailored to your trucks box. They are molded of a blend of rubber and polyethyulene with a skid resistant surface and ribbed design that promotes drainage of water from the bed. Mopar Under-the-Rail Bed Liners provide full use of the integrated verticle and horizontal board dividers. Tailgate Covers feature cup holders. Color: Black Size: 8.0 Bed Notes: Skid Resistor Bed Liner and Tailgate Cover. Texas Pride logo.