This item is a modern, accurate and fully functional sailboat compass. This boxed compass is also gimbaled so that the compass remains level even if placed in a boat that severely heels. The brass on the compass is lacquered so it will not tarnish. The liquid-damped compass is 4 inches (10.2 cm) in diameter, the compass card is 2 7/8 inches (7.3 cm) in diameter, and the case measures 6 1/4 inches (15.9 cm) square and 4 3/16 inches (10.7 cm) tall. This item weighs 3 pounds, 12 ounces (1.7 kg).