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. A ball and socket tension knob keeps the mirror where you position it. The universal quick-mount, anti-scratch bracket will mount to rectangular or rounded windshield frames from 0.375 to 1.25 inches. The attached mounting bracket is made from aluminum and has a black textured finish. It attaches to the windshield using a quick and easy clamp-on design and can be positioned to sit above or below the windshield frame. The Ellipse Marine Mirror is constructed of heavy-duty durability tested materials and features OE grade glass. In order for glass meet 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 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.