Kaisi KS-37045A Stereo Digital Trinocular Microscope 1. Objective power: 2X 2. Eyepieces(DIN, 30.5mm): WF10x18mm, WF20x10mm 3. Microscope stand: Boom-arm stand, Pillar Stand 4. Illumination type: Upper, reflected 5. The KAISI 37045Aprofessional stereo microscope has dioptric adjustment accommodates individual eye-strength differences 6. LED light source provides bright, cool light for working with temperature-sensitive specimens 7. The microscope has a 13.5-inch pillar that provides a 9-inch vertical working distance 8. Bilateral focus eases use for left- and right-handed users 9. All metal construction is durable and stain-resistant 10. The 17-inch boom arm has a 12-inch working distance 11. This is an ideal microscope for home or school for students in elementary to high school to learn sciences 12. Microscopes are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries