Towing Mirrors, for Chevy GMC SCITOO Exterior Accessories Mirrors for 2008-2013 Silverado Sierra 1500 2500HD 3500 (Fit 07 New Body Style) with Convex Glass Manual Controlling Telescoping and Folding FITMENT - 2008-13 Chevy Silverado 1500 / 2500 HD / 3500, 2008-13 GMC Sierra 1500 / 2500 HD / 3500, 2007 Chevy Silverado 1500 / 2500 HD / 3500 Fit GMC Sierra 1500 / 2500 HD / 3500 ( Note : Just Fit 07 New Body Style). DUAL GLASS - The mirror face itself is a manual adjustment, so you do need to just use your hand to adjust it where you need it and if you'll notice the littler mirror here at the bottom, that's a built-in spotter mirror. This will help produce blind spots. That is also a manual adjustment. TELESCOPING FEATURE- The telescoping function makes it easy to see around the side of your trailer, so that can safely change lanes, pass or park. Basically all you have to do is just pull the mirror just like this away from your vehicle. IMPORTANT NOTE- It just fit 2007 New Body Style NOT Classic REPLACEMENT- GM1320337, GM1321337, CV39L, GM1321337, 20862095, 08065-821, 2008, 08065-822, 20760443, 20760444.