The compass card has the standard 0 - 360 degree scale, as well as the 0 - 64 Mil scale (one yard at 1, 000 yards). The cardinal points are luminous for easy viewing in the dark, and the compass features a standard glass bezel with two lines at 45 degree angles. The bezel also rotates with detents so you can change the heading reference a known amount without looking at the compass. The front sight has a magnifier to simultaneously view the magnetic heading when taking a sight. Folding the sight down operates a needle lift mechanism to protect the compass bearing. On the side of the compass is a needle freeze mechanism to hold a reading.The lid of the compass has a glass window with a line etched into the glass for use as a rear sight. The outside of the compass has a brass guard to protect the glass. The compass measures 2 1/8 inches (5.4 cm) in diameter, 7/8 inches (2.2 cm) thick. The back of the compass can be custom engraved with a minimum quantity purchase.Product Description : Available in Brass Finish, Black Antique Finish, Nickel Plated Finish with Sheesham Wooden Box Or Leather Case.