20x, 40x Stereo Microscope Binocular, Adjustable interpupillary distance between, 10x Wide Field Eyepiece, Head Rotates 360°, Transmitted and Oblique Illumination, Coarse Adjustment, Includes Spare Bulb and Fuse, Power Cord, Specimen Plate and Plastic Dust Cover. Barska's 1-Yr Limited Warranty Specifications: Model # AY11228 Microscope Type Stereo Magnification 20x 40x Objective Lens 2x, 4x Eyepiece System WF10x, 20mm Adjustment Knob Coarse Working Distance 90mm Body Material Aluminum Alloy & Copper Weight 11lbs Included Accessories Spare Bulb, Fuse, Power Cord and Plastic Dust Cover Warranty 1 Year Limited Warranty