Durable introductory microscope is ideal for classroom or field use. The microscope body, viewing tube, and stage are constructed of cast metal. Light-gathering Lucite prism provides sub-stage illumination without the need for electricity by using ambient or room light. 40x magnification is provided by a wide field 10x eyepiece and 4x objective. Tilt mechanism enables users to adjust the angle of the viewing tube while slides are held securely in place by spring-loaded stage clips.