AmScope 3.5X-90X Simul-Focal Stereo Lockable Zoom Microscope with 144-LED Ring Light

Simul-focal trinocular stereo microscope simultaneously views clear images through trinocular port and eyepieces 3.5X-90X super wide field stereo zoom magnification power Powerful 144 LED ring light with dimmer 2-1/2" super wide field view and 8" working distance Flexible single-arm boom stand covers large working area