Abstract: A flip-up convex mirror attachment for installation onto the original equipment mirror in vehicles with either a left-side or right-side driver. The flip-up convex mirror attachment attaches to the mirror surface of the original equipment interior mirror found in most motor vehicles. The flip-up convex mirror attachment contains an angled hinge block for creating a predefined offset angle between the flip-up convex mirror and the OEM mirror such that the reflected image on the side of the mirror nearest the driver is maintained at generally the same point behind the vehicle as the original equipment mirror. The wedge-based hinge assembly may be attached to the flat mirror surface on either a left-side or right-side driver vehicle and still maintain the desired angular offset between the OEM and flip-up convex mirrors.