ZABBYS COLOR LVA SCOPE ECONOMY MODEL- ZLVAS-ECO: Highly versatile and popular standard Color LVAScope is of great utility. Included Features: 1. Display: 185 mm Horizontal (Standard 10” CRT diagonal). 2. Magnification Range: 3X to 25X 3. Field of View: 60 to 7mm. 4. X-Y Stage Travel:-NOT AVAILABLE 5. Illumination: Top illumination provided by LED & CFL ring with intensity control. 6. Maximum Working Distance: 120 mm. 7. Permissible height of object:0 to 30mm. 8. Reversing unit (OPTIONAL) allows you to convert black printed matter on white background, to white on black.