These new molded guards are designed to meet most international and US highway regulations for tire coverage and will help keep mud and debris under control. Constructed from flexible and durable polyethylene, AEV has molded these Splash Guards to perfectly match the contour of the Rear Bumper's rock tubes and water tanks. Installation takes less than 10 minutes and requires no cutting, drilling or fiddling with exotic fasteners. Simply hold the Splash Guards in place and secure them with the supplied stainless bolts to the threaded inserts already molded into the water tanks. And it's just as easy to remove the Splash Guards when they're not needed.