Description- Chrome plated metal body with glass lens The 30x power loupe has a focal distance of 1/2" (13mm) with 21mm dia lens size It include a small loop to attach to a neck chain or key chain It comes with its own hard plastic felt lined storage case Loupe dimensions: 38 x 26 x 18 mm Good for identifying small marks on jewelry, watch making industry, specially for inspecting those tiny objects etc. Foldable and tiny, great to have one in your pocket all the timeBrand new