A wonderful Jewelers Loupe to view your marbles, watches, coins, jewelry, stamps, crafts and anything you would like to see close up. It is 20x21 magnification. It is made of bright polished chrome metal not like the cheap plastic types. It is made with a half loop to run a lanyard through it for wearing. You could also make a beautiful necklace and wear it when out shopping for small items. I have used one like this for years for coins and jewelry and love it! AND BEST OF ALL FREE SHIPPING IN U.S.A. & Canada! What Is a Magnifier Loupe? Jewelry professionals use a magnifier, also called a loupe (pronounced loop), to inspect gemstones and other jewelry. These magnifiers have special lenses that allow our eyes to focus on an object at a much closer distance than is normally possible, making the object appear to be larger and revealing tiny details we couldn't see with our normal vision. A triplet loupe is a magnifier that contains three lenses placed together in such a way that distortion and color problems are corrected. Magnification Power Loupes are labeled with a number, followed by the symbol "X," which means "times." For example, a 2X loupe makes an object appear two times its actual size and a 5X loupe shows you a times-five increase and 20x means 20 times. HOW TO USE YOU NEW LOUPE To use a loupe hold is close to your eye and bring the item closer until it is clear to you. This will be very close to the loupe. After doing it a couple of times it will be like second nature. Loupes make great gifts! Member has an eBay Store