This precision instrument from AmScope, is a high quality 8x-50x trinocular stereo zoom microscope, and features extreme widefield optics, both incident (top) and transmitted (bottom) LED lighting systems, and a convenient track stand for easy focusing. Optically, the large zoom magnification range of 8x-50x maintains focus at a 4.5" (115mm) working distance. This parfocal feature provides ample room for various sample sizes, and with its 360 degree swiveling head and 45 degree ocular tubes, the ultimate experience in comfort can be achieved to your liking. For illumination, a 2-3/4" (70mm) LED plate is installed, providing ample lighting. These features all add up to a great microscope for industrial, educational, and professional applications for research labs, hospitals, schools, veterinary offices, and more. Because of the LED lighting systems lack of heat emission, it becomes extremely useful for organic or temperature-sensitive applications, such as live tissue dissection, or observing live organisms, such as insects, plans, or virtually any translucent object. Equipping it with a ring light or gooseneck illuminator (sold separately) serves to add opaque sample viewing, making it a perfect all in one system. Our new stereo microscope provides all the features of a high quality laboratory instrument at an affordable price. Packing List : One Trinocular Stereo Zoom Head One Pair of Extreme Widefield Focusable 10X Eyepieces One Track Stand with LED Plate and Focusing Rack One Pair of Clips One Power Cord