This Economy 3 Objective Student Microscope offers popular features for educational use in a durable scientific instrument. A full-featured, reliable instrument for a fraction of the cost of professional microscopes. Features: Mechanical stage, 45 degree inclined monocular head, rotatable 360 degrees, lock-on widefield 10X eyepiece with special scale pointer, 3 DIN objectives: 4X,10X,40XR, Magnification from 40X to 400X, rotatable nosepiece with positive click stops, 4 1/2" x 4 1/2" (110x120mm) metal stage with clips, 6 hole disc diaphragm, coaxial fine and coarse focusing, built-in illuminator base with 115V 20W tungsten lamp 3 wire cord, UL approved. Boasts an all metal frame with durable enamel finish plus plastic panels over base for less heat conduction. Comes with vinyl dust cover and replacement bulb (MA09). Size: 5" x 7"x 12 1/2" H. Accessory Kit and Prepared Slide Sets available separately.