Dee Zee DZ86718 Heavyweight Bed Mat Extra Thick .375" (9.52mm) Rubber Compound Construction Helps Prevent Cargo From Shifting &amp; Damaging Your Truck Bed Highly Compressed Rubber Resists Abrasions, Tears, Cracking and Fuel Spills Rubber Material Deflects UV Rays To Reduce Fading Custom Fit Applications Contour Around Wheel Wells For A Perfect Fit