Ritchie Venture Bulkhead Compass SR2Ritchie Venture SR-2 compass is designed primarily for sailboats 16 ft. to 36 ft in length.Ritchie Venture Compass features a 3-3/4″ CombiDial. Combi-Dials are a combination of direct-read and flat-card dial design, allowing the dial to be read from both above and directly in front. This maximizes visibility and allows for more mounting options. This compass features a bulkhead mount, which is often used on sailboats to reduce interference with lines and to save space.Blue LED night lightingVertical mounting angle through 40 degreesSteady quick lock-on performanceExclusive 5-Year Ritchie warrantyProtective front and back covers are includedSpecifications:3-3/4″ CombiDial4-5/8″ to 4-13/16″ Mounting hole