A sleek, low-profile design is the signature of the Lo Pro. Heavy-duty construction and the patented automatic tension control keep the cover looking great in any weather condition. The Lo Pro mounts inside the rails of the truck bed, providing full access to stake pocket holes for use with additional accessories. Stylish design, simple functionality and durable bed protection are what make the Lo Pro North America's #1 selling roll-up truck bed cover. Lo Pro Tonneau Cover - Black - 2007-2014 Chevy Silverado/GMC Sierra 3500 HD 8' Bed with Dual Rear Wheels with Bed Caps Lo Pro Tonneau Cover 2011-2013 Chevrolet Silverado 3500 HD 97.8 Bed, 2007-2010 Chevrolet Silverado 3500 HD 97.6 Bed, 2007-2013 GMC Sierra 3500 HD 97.6 Bed