1:Great product for the watch making industry, specially for inspecting those tiny objects.Good for jewelry, coins, stamps and antiques etc.. * 2:Foldable and tiny, great to have one in your pocket all the time * 3:High Quality Eye Magnifying Glass. Color : Black * 4.Len diameter: 25mm. there is LED light, is helpful for you. * 5.This extremely powerful Jeweler"s Loupe is 4 times more powerful than the average (10x) loupe.