Amscope Sm 4tz 144 Professional Trinocular Stereo Zoom Microscope Wh10x Eyepieces 3 5x 90x Magnification 0 7x 4 5x Zoom Objective 144 Bulb Led Ring Light Double Arm Boom Stand 110v 240v Includes 0 5x And 2 0x Barlow Lens