Please contact us if you have any question. We will work with you to solve any problems. Thank you! Specifications: Item Name: stereo microscope Total Magnification: 10X, or 20X, or 30X, or 40X Objective: 1X, or 2X, or 3X, or 4X Material of the body: metal Material of the lens: optical glass Eyepiece Mounting Size: 30.5 mm Microscope Structure: upright Working Stage: 60 mm black and white reversible stage plate Size: 170 x 115 x 290 mm Weight: about 1600 g Features: 1. Ocular-Tube with Adjustable Diopter. 2. Rugged Metal Frame and Stand. 3. Full Optical Glass Elements. 4. 45 Degree Inclined Binocular Head with Locked-In Eyepieces. 5. Sharp Stereo Erect Images over a Wide Field View. 6. Accurate Alignment Ensuring a Fatigue-Free Long Viewing. Application: 1. This stereo microscope is a great instrument for many applications. 2. It can be used in geology, forestry, archaeology, agriculture and biology. 3. It is appropriate for educational purposes in hospitals and schools. 4. It is great for the exploration of the world of surface details and fine structures of various materials like wood, metal, solder, semiconductor and stone. 5. It is perfect for the examination of insects, plants, rocks, stamps, coins, jewel, soldered points. 6. Microelectronic components or virtually any three dimensional objects. 7. This scope is an ideal tool for watchmaker, jeweler, engraver, dies-maker, philatelist, coin collector, students, and etc. Package Included: 1x one set of microscope with WF10X eyepieces 1x one pair of clips 1x one pair of eye-cups 1x dust cover