Dee Zee DZ87005 Heavyweight Bed Mat Helps Prevent Cargo From Shifting and Damaging Your Truck Bed Extra Thick .375" (9.52mm) Rubber Compound Construction Will Not Rust, Crack, Or Break - Even In Extreme Temperatures Resists Common Fuel and Oil Spills Custom Fit Applications Contour Around Wheel Wells For A Perfect Fit.Utility Mats Can Be Trimmed To Size