This trinocular stereo microscope gives 10X-20X-30X-60X magnification settings with sharp clear images and high resolution. It comes with super widefield and high-eyepoint eyepieces a single arm boom stand and a fluorescent ring light. It offers large working distance and versatility. It is an ideal instrument for research labs gemologists collectors engravers and anyone in semiconductor or electronic industry. This stereo zoom microscope is in box. Features : High Resolution with Great Flatness and Contrast Trinocular Head with Super Widefield Eyepieces 8W Fluorescent Ring Light Included Both Ocular-Tubes with Adjustable Diopter 10X-20X-30X-60X Magnifications Large Working Distance Full Metal Stand Construction Single Arm Boom Stand with Solid Base Optional Fiber Optical Illuminator or Fluorescent Ring Light Manufactured under ISO 9001 Quality Control Standard Excellent Five (5) Year Manufacturer Warranty Specifications : Head: 45 degree inclined 360 degree swiveling trinocular Eyepiece: super widefield WH10X/20MM Objective: 1X & 3X Barlow Lens: 2.0X Diopter Adjustment: +/- 5dp Interpupillary Distance: 2-3/16 - 2-15/16 (55-75mm) Working Distance: 4 (100mm) Illumination: 8 Watt fluorescent ring light Power Supply: 110V (Please email for 220V version) Boom Stand: 16 single-arm (overall length: 24 ) 17 high pillar 9 x 9 x 1-3/4 solid cast steel base Accessories: a paired eye-guards Packing List : One Trinocular Stereo Microscope Head with 1X & 3X Objectives One Pair of Super Widefield 10X Eyepieces One Super Widefield 2.0X Barlow Lens Single-arm Boom Stand with Focusing Rack One Fluorescent Ring Light with Adapter One Pair of Eye-guards Shipping Weight: 60 lbs Packages: 2 (45 + 15)