● North seeking arrow: This main arrow spins around to find Magnetic North and the tip is usually red.
● Direction of travel arrow / lines: These are fixed lines or arrows that sit outside the spinning compass compartment. They point in the same direction that you point the compass.
● Stationary index line: This thin line points in the same direction you are going. It doesn’t spin, but it is in or near the spinning compartment.
● Rotating bezel ring: The rotating ring around the Magnetic North seeking arrow that has the degree numbers from 0 to 360.
● Orienting arrow / lines: These are built into the face of the compass and points to 360 degrees on the rotating bezel ring. The orienting arrow and lines will point wherever you spin the bezel. The space inside the arrow is the “shed.”
● Base plate and straight edge: Whether it folds or not, a good compass can lay flat and has a long straight edge so you can create lines and take measurements on your map.