Adjustable Ski Boat Rear View Mirror: Attached to the windshield of your boat, the mirror can be rotated 360 degrees to fit your need because of the ball shape connection Upgraded Metal Clamp: More sturdy than plastic clamps, and more stable than suction cups without falling out. The large knobs are easy to turn tight. Wide-Angle View: This upgraded L x W: 8 in x 4 in marine mirror has a nice wide view to see skiers while driving the boat. The field of view is large enough to meet your expectation. Universal Boat Mirror: Fit for marine boat mirror rear view. Mounted on marine, ski boat, L x W: 8 in x 4 in size mirrors. Convex safety lens, easy to see the wide angle viewing but won't obstruct your view of what's in front. Please note the mirrors DO NOT FIT for Sea Ray Sundeck, South Bay Pontoon. Easy To Intall: It is easy to install our boat rear view mirror on your boat, the bracket can be mounted to windshield frames about 0.6-0.98 inches. It will stay in the roughest water conditions.