Made in USA , Rose micro solutions based in USA, 100% pure Glass lenses, 100% clarity According to dentists who have tested it, it features a streamlined lens body that allows maximum light transmission. Our 2.5 Magnification loupe will be mounted on a Rose Safety Frame. This is our lightest and most universal frame. It also comes in 5 color options! This loupe offers a 2.5" field of view and a 3-4" depth of field.