This is a 3D double-arm heavy duty boom for stereo microscopes. It allows you to turn microscope head around three different axis (x, y, and z), allowing you to point the microscope head in ANY direction you wish.
eBay
RF4 Triocular Microscope 6.5-65X Microscope Head With Multiple Objectives Mobile Phone PCB Welding
Aliexpress UK
Amscope 7X-90X Binocular Stereo Zoom Microscope w/56 LED Compact Ring Light on Double Arm Boom Stand. A highly-versatile stereo microscope on a heavy-duty, multi-pivot boom-stand which allows the microscope to easily swing into place when needed, and away when not.
eBay
Microscope LED Double Head Illuminator Lamp For G1600 G1200 Microscope Light For Soldering
Aliexpress UK
This is a binocular 7X-45X zoom stereo microscope that gives crystal clear sharp images. The rubber eye-guards provide further comfort. The double-arm boom stand allows you to turn the microscope head around three different axes (x, y, and z), allowing you to point the microscope head toward to ANY direction.
eBay
Microscope Ring Light LED Double Head Illuminator Lamp For Microscope Light Soldering Industrial
Aliexpress UK
Binocular head with 45 degree inclined 360 degree swiveling eye tubes. The SMZK-1BS stereo microscope is an ideal microscope for industrial inspection or biological analysis, with its 7X-45X zoom range.
eBay
Microscope Trinocular Head Free Monocular Head Binocular Head for Biological Microscope with WF10X
Aliexpress UK
【DUAL ARM BOOM】 - The trinocular stereo zoom microscope is designed with the dual-arm boom, allowing a working distance up to 20 cm/7.87". It is easy to adjust forward/backward and up/down for covering a large working area.
eBay
AmScope 7X-45X Simul-Focal Trinocular Zoom Stereo Microscope Head
Aliexpress UK
50X - 1200X Magnification: Easy to zoom right in and out and focus by adjusting the knob to view the incredible details at a magnification range from 50X to 1200X. Larger view with the microscope on the top, and better details at the bottom.
eBay
7X-45X Simul-Focus Parfocal Continuous Zoom Trinocular Stereo Microscope Head 76mm Diameter Holder
Aliexpress UK
Five Magnifications, 40X, 100X, 250X, 400X, and 1000X. We, AmScope, provide all warranty services. The light sources use either an outlet (adapter included) or three AA batteries (included). 45 Degree Inclined 360 Degree Swiveling Monocular Head with Locked-in Eyepiece.
eBay
3.5X 90X 180X Simul-Focal Double Boom Stand Trinocular Stereo Zoom Microscope 48MP 4K HDMI USB
Aliexpress UK
Adds 360° rotation of the binocular head, to the facilities of the Classic Student Stereo.
eBay
AmScope 7X-45X Black Simul-Focal Trinocular Zoom Stereo Microscope Head Mobile phone repair
Aliexpress UK