H. L. Scientific industries magnetic heading when direct viewing from above. this Military compass measures 3 inches (7. 6 cm) long, 2 1/8 inches (5. 4 cm this military lensatic compass folds easily to fit in your pocket. this accurate compass has a liquid-damped compass card and features both the standard 0 - 360 degree scale, as well as the 0 - 64 mil scale (one yard at 1,000 yards).the Military compass has a luminous dial that can still be read easily at night, and a standard bezel with two yellow lines at 45 degree angles. you can change the heading reference a known amount without looking at the compass since the bezel rotates with detents every 3 degrees. the front sight has a magnifier to allow concurrent viewing of the magnetic heading when taking a sight. a second magnifier assists in reading the) wide, 1 inch (2. 5 cm) thick, and weighs 4. 4 ounces (125 grams). a durable cast gold zinc case serves to protect this compass. a 100 percent leather case, or a military-specification pouch is available for the compass. sorry, this compass cannot be custom engraved.