40 X 25mm Metal Magnifier Jeweler Jewelery Loupe Magnifier with LED light 40X 25mm POWER JEWELER LOUPE LED LOOP MAGNIFIER MAGNIFING GLASS LIGHTED Great product for the watch making industry, specially for inspecting those tiny objects Foldable and tiny, great to have one in your pocket all the time Len diameter: 25mm This extremely powerful Jeweler\'s Loupe is 4 times more powerful than the average (10x) loupe.