The zoom feature of this stereo microscope allows the user to zoom or change magnification continuously throughout its magnification range providing a low to high power range. Constructed with 10x wide field eyepiece and high quality optical glass. Built-in coarse  adjustments allow users to locate the target accurately. Easy out-of-the-box setup and ease of use features makes these microscopes ideal for any school or college student. You'll be amazed to see how ordinary objects look through these microscopes.