VEVOR Multi-Directional Microscope with Spring Bracket, 7X-45X Magnification Jewelry Microscope, Micro Jewelry Inlaid Stand with Integrated USB Ring LED Light, Jewelers Microscope for Jewelry Inlay Widely Used in Inlay and Craft Industries Large Operating Space Telescopic Stand Sufficient and Even Illumination Comfortable Headrest Supports Simultaneous Observation and Adjustment Working Distance: 0-15.7 in / 0-400mm,Binocular Distance: 2-3 in / 50-75mm,Total Magnification: 7X-45X (adjustable),Item Model Number: JH-1A,Eyepiece Magnification: 10X,Product Weight: 22 lbs / 10kg,Material: Steel + Aluminum + Plastic,Objective Lens Magnification: 0.7X-4.5X (adjustable),Product Dimensions: 18.3 x 6.9 x 18.7 in / 465 x 175 x 475mm,Field of View: 0.2-1.3in / 5.1-33mm,Stand Extension Length: 13.2-30.7 in / 335-780mm