Truxedo 555801 Lo Profile QT Soft Roll-Up Tonneau Cover Easy trigger latch features one-finger release functionality ensuring quick and easy single-person usability Adds a sleek appearance on any truck and aerodynamic contours to your truck, improving MPG up to 10% Quick and easy installation in just minutes without the need for drilling or cutting using clamps and pre-assembled, quick attach header guide.= Patented spring tensioner automatically adjusts to keep the cover tight in fluctuating temperatures Industrial strength Velcro attaches the cover to the rails keeping it tight and taut while reducing wear and tear