The Flex by Undercover offers versatility, security, and function in one sleek low profile bed cover. The Flex ultra low profile design is because it rests inside the truck bed rails and it mounts without drilling on the truck. Open one, two, or all three of the folding panels to access the part of the bed you need and you can even drive with all three panels open with the included prop rods which hold the cover up fully open. Or easily remove the whole cover in seconds if needed. The composite material the panels are constructed of is lighter, stronger, and has higher dent resistance than competing covers made of aluminum. Rubber seals and drain tubes keep the bed dry. You have to open the tailgate to open the Flex cover... so just lock the tailgate and the whole bed is locked for security of your cargo. Installation available for an additional $89.95 charge.