Features [3.5X to 90X] Continuous zoom ratio from 3.5X to 90X, 30mm ultra wide field of view WF10X eyepiece, so you can use it with confidence. [Wide Viewing Distance] Trinocular stereo microscope head tilted at 45 degrees, with super wide viewing distance high eye position eyepiece. [High Resolution] Trinocular microscope head with high resolution, good flatness and contrast, pointed stereo upright images over a wide field of view, clear original true color images. [Accurate Alignment] This microscope head with large working distance, accurate alignment, ensuring fatigue free viewing, to meet your various need. [Adjustable Interpupillary Distance] Trinocular interface can add photo or video function. Adopt optical glass elements, metal mechanical parts, and the interpupillary distance is adjustable. Package List 1 x Microscope Head 2 x Eyepiece 1 x 0.5X Object Lens 1 x 2X Object Lens 2 x Rubber Eye Patch 1 x Hex Wrench 1 x Dustproof Bag