The Ritchie Kayaker Surface Mount Compass features a 2.75 inch direct reading dial in black housing. When properly sized, installed and compensated a marine compass is the most important instrument on any boat. It will provide accurate, trouble-free heading references under the most adverse conditions without relying on electricity, radio signals or satellite communications. 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. Modern technology makes Ritchie Compasses the World's Best Marine Compasses.• Dial Size: 2 3/4 Inch• Mounting: Surface Mount• Dimensions: 4-1/4 Inch W x 2-3/4 Inch Overall H• Color: Black• With Built In Compensators: Yes 4-1/4 Inch width x 2-3/4 Inch Overall Height With VY-0203 Mounting Gasket For Kayaking | Ritchie Kayaker Surface Mount Compass, Black