Wide Application: Clip on eyeglass magnifier is suitable for watch repair, stamps, jewelry appraisal, antiques, handicrafts, miniature engraving and so on. Ideal for jewelers, stamp collectors, mechanics, watchmakers and other fields that require magnified observation of the target object. Material: Watchmaker loupe is made of high quality aluminum alloy and acrylic optics, and can be used for a long time, easy to use. Lens Magnification: 20X magnification high definition lens to get the , convenient for people in poor eyesight or for close observation. Outstanding Fixture: Magnifier with a metal clamp clip for attaching to eyeglasses, which can be fixed on the right or left side. It is a perfect tool for people who wear glasses and need magnification but want to free their hands. & Convenient: This jewelers loupe is , small and portable, just put it in your pocket, you can use it at any time, and this magnifier can be easily attached to any pair of ordinary eyeglasses frames.