This Magnification Loupe is an ideal tool for Jeweler, laboratory and industrial use. This loupe features high quality 10X, 21mm magnifier optical glass lens with built-in LED light source that can be activated by a push button switch and non-reflective black surround for accurate gem grading. Provided storage case can protect the loupe when not in use, and a key for changing battery compartment. With built-in LED light, this loupe is perfect for any brightness condition. Sufficient illumination plays an important role so that there is enough light to allow you to see clearest view of a magnified object. Perfect for magnifying gold nuggets and gems stones, checking machine parts and mini circuits, studying Gems, jewelry, rocks, chemicals, models, stamps, antiques, coins, photography, looking inside the movement of a watch, view miniature art, making mold or just for reading the "fine print" of a document, electronics repair, soldering micro-parts & precision machining, mechanics, machinists and other field that require micro view of the target object. Applications: * Education * Industrial purpose (Watch making, Jewelers) * Geography * Circuit board and printing industry * Coins and stamp collectors * Gardening * Medical science * House living and offices Special Features * 10x magnification power with 21mm diameter lens * Built with bright LED light * Powerful precision glass lens brings fine micro-detail into view * Made with top quality lens and metal cases * Compact and foldable * Built-with small loop to attach lanyard Specifications * Magnification: 10x * Illumination: LED Light * Coated optical glass lens * Lens Diameter: 21mm * Jeweler Quality * Foldaway design * Push Switch to turn LED light On/Off * Button Batteries (included) Set Includes * 1 x Jeweler Loupe * 3 x button cell batteries (installed) * 1 x Mini-screw driver * 1 x protective carrying case * Standard Factory Package