This stereo microscope offers 20X, 30X, 40X and 60X magnification settings. It comes with an arm stand, built-in incident and transmitted lighting systems. It is a perfect instrument for viewing insects, plants, rocks, stamps, jewel and so on. It is an ideal family microscope. Features : 45 Degree Inclined Binocular Head with Locked-In Eyepieces Four Magnification Settings: 20X, 30X, 40X and 60X Sharp Stereo Erect Images over a Wide Field View Metal Body Construction with Arm Stand High Quality Original True Color Unbeatable Low Price Ocular-Tube with Adjustable Diopter Accurate Alignment Ensuring a Fatigue-Free Long Hour Viewing Full Optical Glass Elements Precise Ground Glass Lens All Metal Mechanical Components Adjustable Interpupillary Distance Built-in Incident (top) and Transmitted (bottom) Lights GS & CE Approval Electric Apparatus Extra Bulb, White/Black Base Plate and Rubber Eyeguards Included Manufactured under ISO 9001 Quality Control Standard Excellent Five (5) Year Manufacturer Warranty Specifications : Head: 45 degree inclined binocular Widefield Eyepieces: WF10X and WF15X Objectives: 2X & 4X Diopter Adjustment: +/-5dp Interpupillary Distance: 2-3/16" - 2-15/16"(55-75mm) Working Distance: 2-1/8" (53mm) Frosted Glass Objective Plate: 3-3/4" (95mm) in diameter White/Black Plastic Objective Plate: 3-3/4" (95mm) in diameter Illumination: AC 120V power supply, 12V/10W bulbs Accessories: a pair of eye-caps, a pair of clips and a dust cover Packing List : One Binocular Microscope w/ Backward Arm Stand and Top & Bottom Lights One Pair of 10X Widefield Eyepieces One Pair of 15X Widefield Eyepieces One 3-3/4" (96mm) Frosted Glass Plate One 3-3/4" (96mm) Plastic Plate One Wrench for Focusing Tension Adjustment One Pair of Eye-guards One Pair of Clips One 12V/10W Spare Bulb One Dust Cover User's Manual Download Shipping Weight: 8 lbs For ages 10+