CIPAs COMP II Marine Mirror features a 4 x 11 inch OE grade shatterproof convex safety glass mirror surface to provide added safety and situational awareness. In order for glass to be considered of OE grade it must utilize a technique called first surface coating. First surface coating provides a high quality image that eliminates symptoms such as ghosting and multiple reflections. The convex design of the glass provides for a wider viewing angle. The COMP II Marine Mirror is universal in application and fit, and can be mounted above or below the windshield.Pivot Cup-Mount bracket provides over 120 degrees of easy adjustment. Clam shell clamp design fits most windshield trims and sizes. No drilling required for installation.