"It is the ideal compass for a refined and discreet look of the boat’s bulkhead. Its high quality construction enables it to operate even if the boat has a 30o angle of heel. Specifications Boat Style / Size Power / Up to 16 Feet (4,88m) Dial Size / Design 2” (5,08cm) / Direct Read Night Lighting 12V Green Viewing Adjustable to 30o Mounting Hole 2 1/16” (5,50cm) Warranty 5-Year Approx. Shipping Wt. 5oz. (142gr)"