Made from metal and glass, mini size, foldable and pocket design , with 30x times magnifying. it is very convenient to carry and you can use it anywhere. Great for inspecting gems and diamonds, This 30x Loupe Folding Pocket Magnifier Jeweler loupe with excellent magnification, pop it in your pocket, superb for reading hallmarks. Compactly sized made from solid metal with an attractive chrome silver finish and a crystal clear view. Welcome to custom your logo.