CIPA's Ellipse Marine Mirror is a 4 x 11 inch multi-lens universal boating mirror. It features one 3.25 x 6 inch convex stationary lens in the center and two adjustable 2.5 x 2.5 inch flat lenses on each side. It is great for boats with walkthrough windshields because it allows you to position the outer lenses so that you can avoid mounting the mirror to the center of the windshield. The Ellipse Marine Mirror is constructed of heavy-duty durability tested materials and features OE grade glass. In order for the glass to meet the OE standards, it must be made utilizing a technique called first surface coating. First surface coating provides a high quality image that eliminates symptoms such as ghosting and multiple reflections. OE standards ensure high quality and a crisp clear view. It is the most advanced family recreational boat mirror available allowing a view of both sides of the boat as well as behind. Perfect for boats without wakeboard towers. Pivot Cup-Mount bracket provides over 120 degrees of easy adjustment. Clam shell clamp design fits most windshield trims and sizes. No drilling inquired for installation.