NIUNIU 1. Powerful 40x Magnification: The LED and UV jeweler's magnifying glass has powerful magnification, allowing you to see the smallest details carefully. The magnifying glass provides distortion-free magnification. It is perfect for the watch industry,checking small objects, reading small texts or checking gems and diamonds. 2. PRODUCTS WITH HIGH QUALITY LIGHTING: Jewelry magnifiers with LED and UV lights give you crystal clear, clear images even in the dark. UV light can also be used to identify currency and identify jewelry. It requires 3 LR927 batteries (batteries included). 3. Portable Design: Just slide the jewelry magnifying glass out to use, and slide it back into the case when not in use. The storage box allows you to store the magnifying glass in your pocket or anywhere else while saving space. 4. VERSATILE USE: Eye magnifiers are great for stone and coin collectors, jewelers, hobbyists, industrial use, and a great gift for kids to explore the wonderful world. Eye magnifier is made of optical magnifier and full metal housing, making it lighter,more stable, more compact and more practical.