TrailFX tonneau covers are constructed of a heavy-duty full black aluminium sub-frame and feature a sleek profile which wraps over the truck rail. Includes rubber on subframe, not on tonneau cover, adjustable front hinges for side-to-side adjustment, quick release hinges, bolted steel corner plates, lift assisted package for ease in opening/closing and a tether strap to aid in closing and a push-button, 3-way rotary latch system for consistent latching every time. Installation is in 30 minutes or less.