1. Powerful 40x magnification: The LED and UV jeweler's loupe provides strong magnification, allowing you to examine fine details with clarity. The magnifying glass delivers distortion-free viewing and is ideal for use in the watchmaking industry, inspecting small objects, reading fine print, or evaluating gemstones and diamonds. 2. High-quality lighting: The jewelry magnifier features LED and UV lights that provide a clear, sharp image even in low-light conditions. The UV light helps in verifying currency and identifying certain materials in jewelry. Requires 3 LR927 batteries (included). 3. Portable design: Simply slide the magnifier out to use and retract it back into the case when not in use. The compact storage case allows for easy carrying in a pocket or bag, offering convenient and space-saving storage. 4. Versatile use: This eye magnifier is suitable for gemstone and coin collectors, jewelers, hobbyists, and industrial applications. It also makes a great educational tool for children to explore small-scale details. Constructed with an optical glass lens and a full metal case, it is lightweight, durable, compact, and practical.