The Undercover Armor Flex tonneau cover was built for strength, but it's still light enough to be folded and unfolded whenever you need. The Armor Flex uses heavy-duty panels made out of an extremely strong FRP compound that's lighter than most metal tonneau covers while being more dent resistant. To further improve dent and scratch resistance, the Undercover Armor receives a Line-X® top coating that also serves to give the tonneau cover a great look on top of its extra durability. The Armor Flex drops right into your Ranger without any permanent modifications. The tonneau's rails install to your bed using a clamp system and hold the tonneau itself nearly flush with your Ranger's bed for a clean look. The tonneau folds up toward your Ranger's cab and comes with prop rods to hold it open. The tonneau come standard with a drain and rubber seals to help make it extremely weather-resistant. Each tonneau is UV-resistant and comes backed by a 3-year limited warranty.