40X Magnification: 30X magnification glass lens meets the daily observation of general objects, it has a large 30mm diameter lens, fast and convenient, the distinctive double-layer lens provides clear imaging and good light transmission Durable material: our magnifying glass shell is made of quality ABS material, sturdy and durable, the lens is made of glass, clear magnification effect, long using time; The surface is refined, the whole comfortable and natural 3 LED lamps and 3 UV lamps: this magnifying glass with 3 LED lamps and 3 UV lamps, the LED lamps are suitable for use in the dark or for see details clearly, UV lamps can check items or see colorful items; Just press the red button on the side and you can turn on the 3 white lights, press a second time to turn on the 3 UV lamps, press a third time to turn off the light Adjustable focal height: the magnifying glass adjustable focal length is fixed, but you can still adjust the focus to see three-dimensional objects more clearly; You can adjust the focal length until the protruding part is clearly visible, and there are 2 sizes (0.5mm, 1/16 inch) on the base for measuring items, the bottom of the scale is removable, so you can remove it for better and faster observation Multiple ways to use: you will get 1pcs magnifying glass in our package, they can be applied for gemstones, jewelry, coins coins, stamps, watches, hobbies, models and other observation items you want Battery Specification: 3 AG7 button batteries (not included) luckymeet