This compass is ideal for an adventurous hike in the wilderness. It is encased in a rugged metal case to help protect it from dangers when hiking. Great for explorers and scouts wanting a hiking challenge. To help visibility it has a floating luminous dial and matching line. The glow in the dark marching line is also adjustable. To help better aim you in your orienteering navigations it has a sighting hairline and a magnifying viewer. I The compass even has thumb hold for better comfort when holding it. The lensatic compass--also called a military compass--is a precision instrument that when used with a topographical map can guide the adventurous off marked trails into wilderness areas with confidence. The lensatic compass is used to set course bearings, orient yourself to a map and follow a course over land.