Use this product to read topographical and tourist maps and determine the azimuthal location of a given place. The compact 2″ diameter compass is graduated from 0° to 360° in 2° increments, has a liquid-filled capsule, declination correction scale, and luminous points. The transparent acrylic base has 3 scales: mm, 1:25,000, and 1:50,000, a magnifier with 4X magnification and 4 stencil cuts. It is suitable for overhead projection and comes with a yellow lanyard. The compass is useful for both orientation and demonstrations on magnetic fields!