Davis Windex 10.Sport Wind VaneThe Davis Windex 10.Sport Wind Vine offers exceptional performance at the best value. Features include a sapphire jewel suspension bearing, large fin-low inertia vane, and an easy-to-read, fully adjustable tracking system. Reflector tape on the vane and tracking tabs makes the Windex 10.Sport easy to see day or night. The Windex 10.Sport has a 10" sturdy vane that offers many years of use. They have been wind tunnel tested to wind speeds of 80 knots.Includes glass reinforced poly-carbonate J-Base for side, top, or front of mast mounting on most dinghies, smaller boats, and sport boats.Key Features: Sapphire jewel suspension bearing; Fully adjustable tracking system; Stands 9.25" tall and weighs 1.2 ounces; Click to Download Davis Windex 10.Sport Instructions