GC - 10X-20X Dual Butterfly Jewelers Jewelry Loupe Folding Magnifier Magnifying Glass Lens US FASTPER Dual magnifying glass with one 10X power mag and the other 20X power mag Dimensions: 10x mag lens x 18mm diameter glass / 20x mag lens x 21mm diameter glass Chrome plated metal body with glass lens It comes with its own hard plastic felt lined storage case Foldable and tiny, great to have one in your pocket all the time