The Ideal Compass For Small Powerboats, Cars, And Trucks! With its low-profile design, the RitchieSport compass allows compact installation and easy readability of the 1-7/8" direct read dial. The fully adjustable, reversible bracket provides for mounting options through a 300° swing from overhead to standard dash mount. Features high-temp composite construction, built-in compensators, night lighting, and directive force magnet. Bracket pad: 1-1/4" x 1-1/4". Outside dimensions: 2-3/8"H x 2-3/16"W.