Compass, Liquid-Filled, 45 mm, 1 Each

The Compass, Liquid-Filled by United Scientific is a durable, clear magnetic compass in a black plastic rotatable bezel graduated in 5° increments, with a 45 mm bezel diameter and 35 mm compass diameter. A lanyard is included. Teachers use it for bearings practice, outdoor orienteering, and magnetic field detection in middle school, high school, and earth science classes.