AmScope 3.5X-180X Super Widefield Dissecting Zoom Stereo Microscope + 144-LED Ring Light 3.5X-180X zoom magnification power with crisp sharp images Super widefield high-eyepoint optics 2-1/2" (65mm) super widefield of view and 8" (200mm) working distance Sturdy all-metal pillar stand 144-LED compact ring light with dimmer