Barska Optics Binocular Stereo Zoom Microscope AY11232 Binocular Zoom Stereo Microscope, 7x- 45x, Head rotates 360° 10x Wide field eyepiece. Trasmitted and oblique illumination, coarse adjustments, interpupilary adjustment. Includes spare bulb, fuse, power cord specimen plate and Plastic Dust Cover. Specifications: - Model #: AY11232 - Microscope Type: Stereo - Magnification: 7x-45x - Objective Lens: 0.7x-4.5x - Eyepiece System: WF10x, 20mm - Adjustment Knob: Coarse - Working Distance: 95mm - Body Material: Aluminum Alloy & Copper - Weight: 11 lbs - Included Accessories: Spare Bulb and Fuse, Power Cord, Specimen Plate and Plastic Dust Cover