This 40x Loupe Folding Pocket Magnifier Jeweler loupe with excellent magnification， pop it in your pocket， superb for reading hallmarks. Compactly sized made from solid stainless steel with an attractive chrome silver finish and a crystal clear view. The Folding Pocket Magnifier is 60x34x25mm (folding) in size and 100mm extended fullyMagnification: 40xWith 2 white LED light (with switch)Lens diameter is 25 mmKey ring hole， allows you to carry the item as accessory