1. With a scale board: It is convenient to measure the actual size of objects and is very suitable for details observation in the jewelry, watch industry, fabrics, etc. The mini magnifying glass is also suitable for children to explore the micro world. 2. 3 LED lights: Equipped with bright LEDs and an ultraviolet light, it can be used for reading in the dark. The ultraviolet light can also be used as an anticounterfeiting detection tool for banknotes, passports, credit cards, traveler's checks, etc. 3. Portable and easy to use: Lightweight and durable, easy to carry around. Comes with a leather protective case to prevent falls and scratches. Lens diameter: 26 mm. 4. 30x magnifying glass: Adopts 30x antiscratch performance lenses to clearly observe details. Doublelayer optical lenses, definition magnifying glass with a scale, marked with inch and millimeter units for convenient use.