Wing mirrors, also known as side mirrors, provide the driver with visual information on areas adjacent and behind the vehicle not visible through the rear window. These assemblies are mounted externally on both sides of the vehicle, typically on the A-pillar or door. Key features include housing, glass reflector (often convex for wider field of view), and an actuation mechanism for remote adjustment. Modern units frequently integrate LED indicators and heating elements for improved visibility. Some designs incorporate blind spot monitoring system components and power-folding functionality for parking ease. Robust mounting brackets and impact-resistant materials are critical for vehicle safety regulations.