Ergonomically shaped, this compass has an extended base plate with inch and 1/10-mile direct reading scales that meet USGS standards. They have 1:24,000 and 1:62,500 direct read scales, 2° dial graduations and a built-in magnifier to view map details. They also have a declination scale for adjustment of map bearings. It also has luminous points for low-light visibility. A lanyard is included. 1.2 oz.