Traditional style, compact and lightweight magnifier shows the clearest and most true-to-color images for accurate identification. Codington color-corrected lens with swing-away, nickel-plated metal cover. Though only a single lens magnifier is specially constructed. It has a grooved diaphragm around its circumference which gives a good distortion free definition of the object being viewed. 1/2" (12.5mm) diameter lens. 10x lens. Assembled in the USA.