1. Microscopes are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries. 2. The professional stereo zoom microscope has a pair of 10X super-widefield high-eyepoint eyepieces, a 0.7X-4.5X zoom objective, and a single-arm boom stand, pillar stand. 3. The microscope has an overall magnification range of 7X-45X. The binocular viewing head has an interpupillary range of 55 to 75mm, a 45-degree inclination to reduce eye and neck strain, and 360-degree rotation to enable sharing. 4. The WH10x20mm super-widefield high-eyepoint eyepieces combine with the 0.7X-4.5X zoom objective to provide continuous zoom magnification and a longer working distance for inspecting large-scale specimens that require handling or repair. 5. Accurate alignment reduces eye fatigue during long viewing 6. The removable 56-bulb LED ring light provides bright, cool light for working with temperature-sensitive or live specimens. 7. The ring light provides shadow-free illumination, and a rheostat controls the amount of light emanating from the lamp. 8. Power and adjustment controls are located on the light head. The light has a 100,000-hour life span and a 90V-265V variable power supply. 9. Magnification range: 3.5X-45XZoom 10. Objective Power: 0.7X-50X 11. Eyepieces (DIN, 30mm): WH10x20mm high-eyepoint 12. Zoom Range: 13:1 13. Field of View: 2-1/2" 14. Optical working distance: Up to 8"Specification: Package Weight One Package Weight 4.29kgs / 9.45lb One Package Size 33cm * 31.5cm * 26cm / 12.99inch * 12.4inch * 10.24inch Qty per Carton 1 Carton Weight 5.80kgs / 12.79lb Carton Size 35cm * 34cm * 30cm / 13.78inch * 13.39inch * 11.81inch Loading Container 20GP: 746 cartons * 1 pcs = 746 pcs40HQ: 1734 cartons * 1 pcs = 1734 pcs