Product size: lens diameter: 60mm height 100MM base 50mm*64mm magnification: 3 times manual measurement is inevitable error Product introduction: reading newspapers, field trips, family use, identification of jade, coins, jade jewelry, porcelain, bronze, stamps, antiques and so on. Easy to carry, fine workmanship and comfortable hand is a large high-resolution magnifying glass. Magnify the internal features of the gemstone (inclusions) and external features (such as the acid-etched netting of the jadeite B); the antique calligraphy and painting identification is a good helper. Product features: The robot is supported by a movable mechanical arm bracket. There are two clips on the bracket. It is suitable for fixing items. It can be adjusted in any direction. It is a versatile tool for careful observation and macro shooting of small objects with a magnifying glass. How to use: Hold the magnifying glass right, so that the lens is parallel to the line of sight. The left hand holds the object to be viewed, and the light is slowly approaching the lens. When you move the object to be identified, the observation position is very obvious. Large field of view magnifier, two small and exquisite manipulators, mainly used for fine work, can prevent hand shake, inconvenience for observing fine items, is a powerful tool for circuit board repair, micro soldering, micro shot, and product display work!