Magnifier is zinc alloy glass holder ( black paint) and 2 pieces optical glass lens Light weight, easy to carry Excellent tool for watch making or repair, viewing jewelry,, stamps, houseplants, rock collection, horticulture and so on The optics loupes magnifier with 30x magnification can provide you more clear and close view for tiny objects Great product for the watch making industry, specially for inspecting those tiny objects You can get an extremely close view of the tiniest Small size, easy to put into your pocket, purse or handbag, Manufacturer: Oxtxuzdm