PRECISION MEASURING INSTRUMENT - Use it like a microscope. Perfect for watch making ,Gems, looking at things outside or your Jewelry, Rocks, Stamps, Coins, Watches, Hobbies, Antiques, Models, diamonds, Photos,Plants, Industry, Reading, House living,office, and much more Quick entomology and botany work, allowing you to examine things in the field so you don't have to bring them inside to throw them under a microscope. DUAL LENS - Primary lens: 30x22mm + Secondary lens: 60x12mm. With two magnifications built into one compact and foldable design,It's hand-held, it can be put it anywhere at any angle. BRIGHT LED LIGHTS - Switch On/ Off for 2 Bright White Led Light, provides sufficient light at any condition, let you see details even in low-light or darkness. EASY TO REPLACE BATTERIES - Built-in 3x LR1130 Batteris, there is the key in the carrying case, screw it easy to replace the batteries. FOLDABLE AND DURABLE -Made of alnium alloy shell cover, ABS environmental plastic and acrylic glass lenses.Simply fold it up when not in use and carry it as needed.