Kaisi 350S Plus Trinocular Stereo Microscope, Kaisi 350S Plus1. Trinocular microscope, super large base plate, can serve as a maintenance workbench. 2. There are also three different hole positions on the bottom plate, which can be flexibly adjusted according to the user desktop and usage habits. 3. The bracket extension design allows for swinging during maintenance. 4. Fixed distance knob, skin friendly shell material. 5. Three eye model, expandable display screen, photography and video recording.