Item Description1:Great product for the watch making industry， specially for inspecting those tiny objectsGood for jewelry， coins， stamps and antiques etc..2:Foldable and tiny， great to have one in your pocket all the time3:High Quality Eye Magnifying Glass4.Color : Black5.Len diameter: 25mm6.This extremely powerful Jeweler's Loupe is 4 times more powerful than the average (10x) loupe.7.there is LED light， is helpful for you.Specification:Magnification: 40xLens Diameter: 25mmIllumination: LED lightLight powered by 3 LR927 batteries (included)Size: 5.4(L) x 3.3(W) x 2.5(H)cm approxPackage included:1 x Jeweler loupe1 x plastic box