30x21mm Jewelers Eye Loupe Magnifier Magnifying Glass Jeweler Eye Loupe Loop This extremely powerful Jeweler's Loupe is 3 times more powerful than the average (10X) louple It comes with its own hard plastic felt lined storage case, include a small loop to attach to a neck chain or key chain Great product for the watch making industry, specially for inspecting those tiny objects Good for jewelry, coins, stamps and antiques etc Foldable and tiny, great to have one in your pocket all the time