40X-400X Binocular Compound Built-in 1.3MP Digital Microscope for Soil – Omax
20X/40X Widefield Stereo Microscope, Binocular, Post Stand (Height 140mm) Fixed Head | Boli Optics Microscope Store
10X-40X Zoom Stereo Microscope, Binocular, Post Stand | Boli Optics Microscope Store
Euromex NZ.1902-P, NexiusZoom Binocular Stereo Microscope, 6.7x to 45x Magnification - New York Microscope Company
Amazon.com : DZQ Stereo Microscope 7X-45X Magnification, Jewelry Microscope 0X/0.5X/2.0X Objective Lenses, Micro Inlaid Mirror WF10X Eyepieces, Articulating Arm Stand with Base Plate, 60-Bulb LED Ring Light(ZQ-2) : Electronics