The most important criteria when selecting a compass are dial size and mounting style. Quality components aid accuracy, smooth response, stability and trouble-free operation. RITCHIE NAVIGATION's Sport Compass X-10B-M is for marine/automotive use and is black with a Direct-Read dial. This compass is easy to install on your marine/automotive vessel's windshield or dash! It features a reversible bracket that adjusts through 300°, 2-3/4" Direct-Read dial, internal green Nite illumination, Hardened Steel Pivot Movement, Sapphire Jewel Movement and high temperature composite construction for extended operating range. Included are two-sided self-adhesive mounting pads, built in compensators and a bracket mount. This compass is 100% repairable and has a 5-year .