VioGi Fit 07-13 Chevy Silverado/GMC Sierra New Body 5'8' (68") Fleetside Bed Soft Lock & Roll-Up Tonneau Cover Black Vinyl Tarp Clamp-On Fit: 2007-2013 Chevy Silverado/GMC Sierra New Body Style Models With 5'8" (68") Fleetside Bed Only Item offered: Tonneau Cover+Rails+Necessary Mounting Hardware Material:Tarp -- Made from tear-resistant double sided 24oz vinyl; Frame -- Aluminum Style:Soft roll-up top-mount design tonneau cover (cross bars are connected with tarp that will roll together with the cover) Installation: Clamp-On -- It features a pre-assembled, no-drill design and applies to your bed with heavy-duty adjustable clamps.Please refer to Please refer to the picture in the ad to see the installation instruction if it does not come with the package