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-2007-2013 Chevy Silverado/GMC Sierra 1500/2007-2014 2500 HD/3500 HD 6ft. 6in. Bed without Cargo Management System Lo Pro Tonneau Cover 2010-2013 Chevrolet Silverado 1500 78.9 Bed, 2007-2009 Chevrolet Silverado 1500 78.7 Bed, 2007-2014 Chevrolet Silverado 2500 HD 78.8 Bed, 2011-2014 Chevrolet Silverado 3500 HD 78.8 Bed, 2010-2013 GMC Sierra 1500 78.9 Bed, 2007-2009 GMC Sierra 1500 78.7 Bed, 2007-2014 GMC Sierra 2500 HD 78.8 Bed, 2011-2014 GMC Sierra 3500 HD 78.8 Bed