This trinocular compound microscope comes with a sliding trinocular viewing head, two pairs of widefield eyepieces, four achromatic objectives, large double layer mechanical stage with scale, Abbe NA1.25 condenser with iris diaphragm, coaxial coarse & fine focus knobs, variable intensity LED transmitted illumination system and the microscope book, "The World of The Microscope". It offers eight level magnification settings, 40X, 80X, 100X, 200X, 400X, 800X, 1000X and 2000X . It easy to connect USB digital camera (sold separately) to record what you see in the microscope and saving it into your computer as a picture or a video clip. The compound microscopy is suitable for labs, clinics, universities, and high schools.