Compatible With: 2014-2018 Silverado Sierra 1500; 2015-2019 Silverado Sierra 2500HD 3500HD; 2019 Chevy Silverado 1500 Legacy; 2019 GMC Sierra 1500 Limited Functions: Adjustable power upper glass; dual glass (flat glass and convex glass); arrow LED turn signal light; white running light; dynamic turn signal light; backup light; heated; temp sensor; manual telescoping and folding Switchback Lights: With unique lights: white running Lights and dynamic turn signals. Not only signals to other vehicles and pedestrians but also makes your vehicle stand out more Dual Mirrors: The large mirror is a flat mirror that can be adjusted electrically. The small mirror is a convex mirror that provides more imaging capabilities. These dual mirrors work together to make your driving safer Wider-view: With manual telescoping, expanding field of view and providing a better and wider rearview angle, reducing blind spots and improving road safety Sanooer Towing Mirrors Compatible with 2014-2018 Chevy Silverado GMC Sierra with Switchback Dynamic