Product details:

The Hand Bearing Compass can be used in two different ways. To take th earing of a point, the compass is held near the eye and read down the line o ight. A stable bearing appears in the prism in perfect focus day or night or quick reference, a heading can be determined by looking straight down a he compass and reading the degree shown with the magnifying lens. Th ontrasting black and red numbers on the compass card make it quick, clear nd easy to read. The compass features a liquid-dampened card with phot uminescent night lighting that quickly charges by placing the compas omentarily under bright light. No batteries are required. A colorful, sturdy ubber housing protects the compass. It also includes an integral lanyard hich serves as a convenient neck or wrist strap. The compass has a lifetim arranty, is factory certified, and is accurate to within 1 degree. I easures 1-3/16" high x 3-3/16" diameter and weight 4.6 ounces. The packag ncludes directions for use and a numbered calibration certificate.