BARSKA Monocular Compound Microscope with Light, 40x, 100x,400x Head rotated 360 degrees. Monocular tube is slanted at a 45 degree angle. 5-Hole Diaphragm. Transmitted illumination. Includes Spare Bulb, Fuse, Power Cord and Plastic Dust Cover. Ideal for general medical applications, industrial use, hobbyists/ collectors and educationals purposes.